mirror of https://github.com/gnss-sdr/gnss-sdr
596 lines
29 KiB
C
596 lines
29 KiB
C
/*!
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* \file volk_gnsssdr_16ic_x7_cw_vepl_corr_32fc_x5.h
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* \brief Volk protokernel: performs the carrier wipe-off mixing and the Very early, Early, Prompt, Late and very late correlation with 32 bits vectors and returns float32 values.
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* \authors <ul>
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* <li> Andrés Cecilia, 2014. a.cecilia.luque(at)gmail.com
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* </ul>
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*
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* Volk protokernel that performs the carrier wipe-off mixing and the
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* Very Early, Early, Prompt, Late and Very Late correlation with 32 bits vectors (16 bits the
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* real part and 16 bits the imaginary part) and accumulates into float32 values, returning them:
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* - The carrier wipe-off is done by multiplying the input signal by the
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* carrier (multiplication of 32 bits vectors) It returns the input
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* signal in base band (BB)
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* - Very Early values are calculated by multiplying the input signal in BB by the
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* very early code (multiplication of 32 bits vectors), converting that to float32 and accumulating the results
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* - Early values are calculated by multiplying the input signal in BB by the
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* early code (multiplication of 32 bits vectors), converting that to float32 and accumulating the results
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* - Prompt values are calculated by multiplying the input signal in BB by the
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* prompt code (multiplication of 32 bits vectors), converting that to float32 and accumulating the results
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* - Late values are calculated by multiplying the input signal in BB by the
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* late code (multiplication of 32 bits vectors), converting that to float32 and accumulating the results
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* - Very Late values are calculated by multiplying the input signal in BB by the
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* very late code (multiplication of 32 bits vectors), converting that to float32 and accumulating the results
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*
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* -------------------------------------------------------------------------
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*
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* Copyright (C) 2010-2014 (see AUTHORS file for a list of contributors)
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*
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* GNSS-SDR is a software defined Global Navigation
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* Satellite Systems receiver
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*
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* This file is part of GNSS-SDR.
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*
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* GNSS-SDR is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* at your option) any later version.
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*
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* GNSS-SDR is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
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*
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* -------------------------------------------------------------------------
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*/
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#ifndef INCLUDED_gnsssdr_volk_gnsssdr_16ic_x7_cw_vepl_corr_32fc_x5_u_H
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#define INCLUDED_gnsssdr_volk_gnsssdr_16ic_x7_cw_vepl_corr_32fc_x5_u_H
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#include <inttypes.h>
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#include <stdio.h>
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#include <volk_gnsssdr/volk_gnsssdr_complex.h>
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#include <float.h>
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#include <string.h>
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#ifdef LV_HAVE_SSE4_1
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#include <smmintrin.h>
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#include "CommonMacros/CommonMacros_16ic_cw_epl_corr_32fc.h"
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#include "CommonMacros/CommonMacros.h"
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/*!
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\brief Performs the carrier wipe-off mixing and the Very Early, Early, Prompt, Late and Very Vate correlation
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\param input The input signal input
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\param carrier The carrier signal input
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\param VE_code Very Early PRN code replica input
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\param E_code Early PRN code replica input
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\param P_code Prompt PRN code replica input
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\param L_code Late PRN code replica input
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\param VL_code Very Late PRN code replica input
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\param VE_out Very Early correlation output
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\param E_out Early correlation output
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\param P_out Prompt correlation output
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\param L_out Late correlation output
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\param VL_out Very Late correlation output
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\param num_points The number of complex values in vectors
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*/
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static inline void volk_gnsssdr_16ic_x7_cw_vepl_corr_32fc_x5_u_sse4_1(lv_32fc_t* VE_out, lv_32fc_t* E_out, lv_32fc_t* P_out, lv_32fc_t* L_out, lv_32fc_t* VL_out, const lv_16sc_t* input, const lv_16sc_t* carrier, const lv_16sc_t* VE_code, const lv_16sc_t* E_code, const lv_16sc_t* P_code, const lv_16sc_t* L_code, const lv_16sc_t* VL_code, unsigned int num_points)
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{
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const unsigned int sse_iters = num_points / 8;
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__m128i x1, x2, y1, y2, real_bb_signal_sample, imag_bb_signal_sample;
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__m128i realx, imagx, realy, imagy, realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output;
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__m128 real_VE_code_acc, imag_VE_code_acc, real_E_code_acc, imag_E_code_acc, real_P_code_acc, imag_P_code_acc, real_L_code_acc, imag_L_code_acc, real_VL_code_acc, imag_VL_code_acc;
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__m128i input_i_1, input_i_2, output_i32;
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__m128 real_output_ps, imag_output_ps;
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float VE_out_real = 0;
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float VE_out_imag = 0;
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float E_out_real = 0;
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float E_out_imag = 0;
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float P_out_real = 0;
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float P_out_imag = 0;
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float L_out_real = 0;
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float L_out_imag = 0;
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float VL_out_real = 0;
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float VL_out_imag = 0;
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const lv_16sc_t* input_ptr = input;
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const lv_16sc_t* carrier_ptr = carrier;
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const lv_16sc_t* VE_code_ptr = VE_code;
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lv_32fc_t* VE_out_ptr = VE_out;
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const lv_16sc_t* E_code_ptr = E_code;
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lv_32fc_t* E_out_ptr = E_out;
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const lv_16sc_t* L_code_ptr = L_code;
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lv_32fc_t* L_out_ptr = L_out;
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const lv_16sc_t* P_code_ptr = P_code;
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lv_32fc_t* P_out_ptr = P_out;
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const lv_16sc_t* VL_code_ptr = VL_code;
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lv_32fc_t* VL_out_ptr = VL_out;
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*VE_out_ptr = 0;
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*E_out_ptr = 0;
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*P_out_ptr = 0;
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*L_out_ptr = 0;
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*VL_out_ptr = 0;
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real_VE_code_acc = _mm_setzero_ps();
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imag_VE_code_acc = _mm_setzero_ps();
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real_E_code_acc = _mm_setzero_ps();
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imag_E_code_acc = _mm_setzero_ps();
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real_P_code_acc = _mm_setzero_ps();
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imag_P_code_acc = _mm_setzero_ps();
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real_L_code_acc = _mm_setzero_ps();
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imag_L_code_acc = _mm_setzero_ps();
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real_VL_code_acc = _mm_setzero_ps();
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imag_VL_code_acc = _mm_setzero_ps();
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if (sse_iters>0)
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{
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for(unsigned int number = 0;number < sse_iters; number++){
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//Perform the carrier wipe-off
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x1 = _mm_lddqu_si128((__m128i*)input_ptr);
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input_ptr += 4;
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x2 = _mm_lddqu_si128((__m128i*)input_ptr);
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y1 = _mm_lddqu_si128((__m128i*)carrier_ptr);
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carrier_ptr += 4;
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y2 = _mm_lddqu_si128((__m128i*)carrier_ptr);
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CM_16IC_X2_REARRANGE_VECTOR_INTO_REAL_IMAG_16IC_X2_U_SSE4_1(x1, x2, realx, imagx)
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CM_16IC_X2_REARRANGE_VECTOR_INTO_REAL_IMAG_16IC_X2_U_SSE4_1(y1, y2, realy, imagy)
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CM_16IC_X4_SCALAR_PRODUCT_16IC_X2_U_SSE2(realx, imagx, realy, imagy, realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_bb_signal_sample, imag_bb_signal_sample)
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//Get very early values
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y1 = _mm_lddqu_si128((__m128i*)VE_code_ptr);
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VE_code_ptr += 4;
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y2 = _mm_lddqu_si128((__m128i*)VE_code_ptr);
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CM_16IC_X2_CW_CORR_32FC_X2_U_SSE4_1(y1, y2, realy, imagy, real_bb_signal_sample, imag_bb_signal_sample,realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output, input_i_1, input_i_2, output_i32, real_output_ps, imag_output_ps)
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real_VE_code_acc = _mm_add_ps (real_VE_code_acc, real_output_ps);
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imag_VE_code_acc = _mm_add_ps (imag_VE_code_acc, imag_output_ps);
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//Get early values
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y1 = _mm_lddqu_si128((__m128i*)E_code_ptr);
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E_code_ptr += 4;
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y2 = _mm_lddqu_si128((__m128i*)E_code_ptr);
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CM_16IC_X2_CW_CORR_32FC_X2_U_SSE4_1(y1, y2, realy, imagy, real_bb_signal_sample, imag_bb_signal_sample,realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output, input_i_1, input_i_2, output_i32, real_output_ps, imag_output_ps)
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real_E_code_acc = _mm_add_ps (real_E_code_acc, real_output_ps);
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imag_E_code_acc = _mm_add_ps (imag_E_code_acc, imag_output_ps);
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//Get prompt values
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y1 = _mm_lddqu_si128((__m128i*)P_code_ptr);
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P_code_ptr += 4;
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y2 = _mm_lddqu_si128((__m128i*)P_code_ptr);
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CM_16IC_X2_CW_CORR_32FC_X2_U_SSE4_1(y1, y2, realy, imagy, real_bb_signal_sample, imag_bb_signal_sample,realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output, input_i_1, input_i_2, output_i32, real_output_ps, imag_output_ps)
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real_P_code_acc = _mm_add_ps (real_P_code_acc, real_output_ps);
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imag_P_code_acc = _mm_add_ps (imag_P_code_acc, imag_output_ps);
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//Get late values
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y1 = _mm_lddqu_si128((__m128i*)L_code_ptr);
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L_code_ptr += 4;
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y2 = _mm_lddqu_si128((__m128i*)L_code_ptr);
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CM_16IC_X2_CW_CORR_32FC_X2_U_SSE4_1(y1, y2, realy, imagy, real_bb_signal_sample, imag_bb_signal_sample,realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output, input_i_1, input_i_2, output_i32, real_output_ps, imag_output_ps)
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real_L_code_acc = _mm_add_ps (real_L_code_acc, real_output_ps);
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imag_L_code_acc = _mm_add_ps (imag_L_code_acc, imag_output_ps);
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//Get very late values
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y1 = _mm_lddqu_si128((__m128i*)VL_code_ptr);
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VL_code_ptr += 4;
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y2 = _mm_lddqu_si128((__m128i*)VL_code_ptr);
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CM_16IC_X2_CW_CORR_32FC_X2_U_SSE4_1(y1, y2, realy, imagy, real_bb_signal_sample, imag_bb_signal_sample,realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output, input_i_1, input_i_2, output_i32, real_output_ps, imag_output_ps)
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real_VL_code_acc = _mm_add_ps (real_VL_code_acc, real_output_ps);
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imag_VL_code_acc = _mm_add_ps (imag_VL_code_acc, imag_output_ps);
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input_ptr += 4;
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carrier_ptr += 4;
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VE_code_ptr += 4;
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E_code_ptr += 4;
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P_code_ptr += 4;
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L_code_ptr += 4;
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VL_code_ptr += 4;
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}
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__VOLK_ATTR_ALIGNED(16) float real_VE_dotProductVector[4];
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__VOLK_ATTR_ALIGNED(16) float imag_VE_dotProductVector[4];
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__VOLK_ATTR_ALIGNED(16) float real_E_dotProductVector[4];
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__VOLK_ATTR_ALIGNED(16) float imag_E_dotProductVector[4];
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__VOLK_ATTR_ALIGNED(16) float real_P_dotProductVector[4];
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__VOLK_ATTR_ALIGNED(16) float imag_P_dotProductVector[4];
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__VOLK_ATTR_ALIGNED(16) float real_L_dotProductVector[4];
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__VOLK_ATTR_ALIGNED(16) float imag_L_dotProductVector[4];
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__VOLK_ATTR_ALIGNED(16) float real_VL_dotProductVector[4];
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__VOLK_ATTR_ALIGNED(16) float imag_VL_dotProductVector[4];
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_mm_storeu_ps((float*)real_VE_dotProductVector,real_VE_code_acc); // Store the results back into the dot product vector
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_mm_storeu_ps((float*)imag_VE_dotProductVector,imag_VE_code_acc); // Store the results back into the dot product vector
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_mm_storeu_ps((float*)real_E_dotProductVector,real_E_code_acc); // Store the results back into the dot product vector
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_mm_storeu_ps((float*)imag_E_dotProductVector,imag_E_code_acc); // Store the results back into the dot product vector
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_mm_storeu_ps((float*)real_P_dotProductVector,real_P_code_acc); // Store the results back into the dot product vector
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_mm_storeu_ps((float*)imag_P_dotProductVector,imag_P_code_acc); // Store the results back into the dot product vector
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_mm_storeu_ps((float*)real_L_dotProductVector,real_L_code_acc); // Store the results back into the dot product vector
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_mm_storeu_ps((float*)imag_L_dotProductVector,imag_L_code_acc); // Store the results back into the dot product vector
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_mm_storeu_ps((float*)real_VL_dotProductVector,real_VL_code_acc); // Store the results back into the dot product vector
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_mm_storeu_ps((float*)imag_VL_dotProductVector,imag_VL_code_acc); // Store the results back into the dot product vector
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for (int i = 0; i<4; ++i)
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{
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VE_out_real += real_VE_dotProductVector[i];
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VE_out_imag += imag_VE_dotProductVector[i];
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E_out_real += real_E_dotProductVector[i];
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E_out_imag += imag_E_dotProductVector[i];
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P_out_real += real_P_dotProductVector[i];
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P_out_imag += imag_P_dotProductVector[i];
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L_out_real += real_L_dotProductVector[i];
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L_out_imag += imag_L_dotProductVector[i];
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VL_out_real += real_VL_dotProductVector[i];
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VL_out_imag += imag_VL_dotProductVector[i];
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}
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*VE_out_ptr = lv_cmake(VE_out_real, VE_out_imag);
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*E_out_ptr = lv_cmake(E_out_real, E_out_imag);
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*P_out_ptr = lv_cmake(P_out_real, P_out_imag);
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*L_out_ptr = lv_cmake(L_out_real, L_out_imag);
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*VL_out_ptr = lv_cmake(VL_out_real, VL_out_imag);
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}
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lv_16sc_t bb_signal_sample;
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for(unsigned int i=0; i < num_points%8; ++i)
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{
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//Perform the carrier wipe-off
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bb_signal_sample = (*input_ptr++) * (*carrier_ptr++);
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// Now get early, late, and prompt values for each
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*VE_out_ptr += (lv_32fc_t) (bb_signal_sample * (*VE_code_ptr++));
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*E_out_ptr += (lv_32fc_t) (bb_signal_sample * (*E_code_ptr++));
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*P_out_ptr += (lv_32fc_t) (bb_signal_sample * (*P_code_ptr++));
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*L_out_ptr += (lv_32fc_t) (bb_signal_sample * (*L_code_ptr++));
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*VL_out_ptr += (lv_32fc_t) (bb_signal_sample * (*VL_code_ptr++));
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}
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}
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#endif /* LV_HAVE_SSE4_1 */
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#ifdef LV_HAVE_GENERIC
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/*!
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\brief Performs the carrier wipe-off mixing and the Very Early, Early, Prompt, Late and Very Vate correlation
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\param input The input signal input
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\param carrier The carrier signal input
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\param VE_code Very Early PRN code replica input
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\param E_code Early PRN code replica input
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\param P_code Prompt PRN code replica input
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\param L_code Late PRN code replica input
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\param VL_code Very Late PRN code replica input
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\param VE_out Very Early correlation output
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\param E_out Early correlation output
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\param P_out Prompt correlation output
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\param L_out Late correlation output
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\param VL_out Very Late correlation output
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\param num_points The number of complex values in vectors
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*/
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static inline void volk_gnsssdr_16ic_x7_cw_vepl_corr_32fc_x5_generic(lv_32fc_t* VE_out, lv_32fc_t* E_out, lv_32fc_t* P_out, lv_32fc_t* L_out, lv_32fc_t* VL_out, const lv_16sc_t* input, const lv_16sc_t* carrier, const lv_16sc_t* VE_code, const lv_16sc_t* E_code, const lv_16sc_t* P_code, const lv_16sc_t* L_code, const lv_16sc_t* VL_code, unsigned int num_points)
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{
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lv_16sc_t bb_signal_sample;
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lv_16sc_t tmp1;
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lv_16sc_t tmp2;
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lv_16sc_t tmp3;
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lv_16sc_t tmp4;
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lv_16sc_t tmp5;
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bb_signal_sample = lv_cmake(0, 0);
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*VE_out = 0;
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*E_out = 0;
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*P_out = 0;
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*L_out = 0;
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*VL_out = 0;
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// perform Early, Prompt and Late correlation
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for(unsigned int i=0; i < num_points; ++i)
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{
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//Perform the carrier wipe-off
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bb_signal_sample = input[i] * carrier[i];
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tmp1 = bb_signal_sample * VE_code[i];
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tmp2 = bb_signal_sample * E_code[i];
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tmp3 = bb_signal_sample * P_code[i];
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tmp4 = bb_signal_sample * L_code[i];
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tmp5 = bb_signal_sample * VL_code[i];
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// Now get early, late, and prompt values for each
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*VE_out += (lv_32fc_t)tmp1;
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*E_out += (lv_32fc_t)tmp2;
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*P_out += (lv_32fc_t)tmp3;
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*L_out += (lv_32fc_t)tmp4;
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*VL_out += (lv_32fc_t)tmp5;
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}
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}
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#endif /* LV_HAVE_GENERIC */
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#endif /* INCLUDED_gnsssdr_volk_gnsssdr_16ic_x7_cw_vepl_corr_32fc_x5_u_H */
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#ifndef INCLUDED_gnsssdr_volk_gnsssdr_16ic_x7_cw_vepl_corr_32fc_x5_a_H
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#define INCLUDED_gnsssdr_volk_gnsssdr_16ic_x7_cw_vepl_corr_32fc_x5_a_H
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#include <inttypes.h>
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#include <stdio.h>
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#include <volk_gnsssdr/volk_gnsssdr_complex.h>
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#include <float.h>
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#include <string.h>
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#ifdef LV_HAVE_SSE4_1
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#include <smmintrin.h>
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#include "CommonMacros/CommonMacros_16ic_cw_epl_corr_32fc.h"
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#include "CommonMacros/CommonMacros.h"
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/*!
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\brief Performs the carrier wipe-off mixing and the Very Early, Early, Prompt, Late and Very Vate correlation
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\param input The input signal input
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\param carrier The carrier signal input
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\param VE_code Very Early PRN code replica input
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\param E_code Early PRN code replica input
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\param P_code Prompt PRN code replica input
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\param L_code Late PRN code replica input
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\param VL_code Very Late PRN code replica input
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\param VE_out Very Early correlation output
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\param E_out Early correlation output
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\param P_out Prompt correlation output
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\param L_out Late correlation output
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\param VL_out Very Late correlation output
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\param num_points The number of complex values in vectors
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*/
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static inline void volk_gnsssdr_16ic_x7_cw_vepl_corr_32fc_x5_a_sse4_1(lv_32fc_t* VE_out, lv_32fc_t* E_out, lv_32fc_t* P_out, lv_32fc_t* L_out, lv_32fc_t* VL_out, const lv_16sc_t* input, const lv_16sc_t* carrier, const lv_16sc_t* VE_code, const lv_16sc_t* E_code, const lv_16sc_t* P_code, const lv_16sc_t* L_code, const lv_16sc_t* VL_code, unsigned int num_points)
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{
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const unsigned int sse_iters = num_points / 8;
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__m128i x1, x2, y1, y2, real_bb_signal_sample, imag_bb_signal_sample;
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__m128i realx, imagx, realy, imagy, realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output;
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__m128 real_VE_code_acc, imag_VE_code_acc, real_E_code_acc, imag_E_code_acc, real_P_code_acc, imag_P_code_acc, real_L_code_acc, imag_L_code_acc, real_VL_code_acc, imag_VL_code_acc;
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__m128i input_i_1, input_i_2, output_i32;
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__m128 real_output_ps, imag_output_ps;
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float VE_out_real = 0;
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float VE_out_imag = 0;
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float E_out_real = 0;
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float E_out_imag = 0;
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float P_out_real = 0;
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float P_out_imag = 0;
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float L_out_real = 0;
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float L_out_imag = 0;
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float VL_out_real = 0;
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float VL_out_imag = 0;
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const lv_16sc_t* input_ptr = input;
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const lv_16sc_t* carrier_ptr = carrier;
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const lv_16sc_t* VE_code_ptr = VE_code;
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lv_32fc_t* VE_out_ptr = VE_out;
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const lv_16sc_t* E_code_ptr = E_code;
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lv_32fc_t* E_out_ptr = E_out;
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const lv_16sc_t* L_code_ptr = L_code;
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lv_32fc_t* L_out_ptr = L_out;
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const lv_16sc_t* P_code_ptr = P_code;
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lv_32fc_t* P_out_ptr = P_out;
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const lv_16sc_t* VL_code_ptr = VL_code;
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lv_32fc_t* VL_out_ptr = VL_out;
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*VE_out_ptr = 0;
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*E_out_ptr = 0;
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*P_out_ptr = 0;
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*L_out_ptr = 0;
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*VL_out_ptr = 0;
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real_VE_code_acc = _mm_setzero_ps();
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imag_VE_code_acc = _mm_setzero_ps();
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real_E_code_acc = _mm_setzero_ps();
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imag_E_code_acc = _mm_setzero_ps();
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real_P_code_acc = _mm_setzero_ps();
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imag_P_code_acc = _mm_setzero_ps();
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real_L_code_acc = _mm_setzero_ps();
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imag_L_code_acc = _mm_setzero_ps();
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real_VL_code_acc = _mm_setzero_ps();
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imag_VL_code_acc = _mm_setzero_ps();
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if (sse_iters>0)
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{
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for(unsigned int number = 0;number < sse_iters; number++){
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//Perform the carrier wipe-off
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x1 = _mm_load_si128((__m128i*)input_ptr);
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input_ptr += 4;
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x2 = _mm_load_si128((__m128i*)input_ptr);
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y1 = _mm_load_si128((__m128i*)carrier_ptr);
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carrier_ptr += 4;
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y2 = _mm_load_si128((__m128i*)carrier_ptr);
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CM_16IC_X2_REARRANGE_VECTOR_INTO_REAL_IMAG_16IC_X2_U_SSE4_1(x1, x2, realx, imagx)
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CM_16IC_X2_REARRANGE_VECTOR_INTO_REAL_IMAG_16IC_X2_U_SSE4_1(y1, y2, realy, imagy)
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CM_16IC_X4_SCALAR_PRODUCT_16IC_X2_U_SSE2(realx, imagx, realy, imagy, realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_bb_signal_sample, imag_bb_signal_sample)
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//Get very early values
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y1 = _mm_load_si128((__m128i*)VE_code_ptr);
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VE_code_ptr += 4;
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y2 = _mm_load_si128((__m128i*)VE_code_ptr);
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CM_16IC_X2_CW_CORR_32FC_X2_U_SSE4_1(y1, y2, realy, imagy, real_bb_signal_sample, imag_bb_signal_sample,realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output, input_i_1, input_i_2, output_i32, real_output_ps, imag_output_ps)
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real_VE_code_acc = _mm_add_ps (real_VE_code_acc, real_output_ps);
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imag_VE_code_acc = _mm_add_ps (imag_VE_code_acc, imag_output_ps);
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//Get early values
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y1 = _mm_load_si128((__m128i*)E_code_ptr);
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E_code_ptr += 4;
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y2 = _mm_load_si128((__m128i*)E_code_ptr);
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CM_16IC_X2_CW_CORR_32FC_X2_U_SSE4_1(y1, y2, realy, imagy, real_bb_signal_sample, imag_bb_signal_sample,realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output, input_i_1, input_i_2, output_i32, real_output_ps, imag_output_ps)
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real_E_code_acc = _mm_add_ps (real_E_code_acc, real_output_ps);
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imag_E_code_acc = _mm_add_ps (imag_E_code_acc, imag_output_ps);
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//Get prompt values
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y1 = _mm_load_si128((__m128i*)P_code_ptr);
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P_code_ptr += 4;
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y2 = _mm_load_si128((__m128i*)P_code_ptr);
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CM_16IC_X2_CW_CORR_32FC_X2_U_SSE4_1(y1, y2, realy, imagy, real_bb_signal_sample, imag_bb_signal_sample,realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output, input_i_1, input_i_2, output_i32, real_output_ps, imag_output_ps)
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real_P_code_acc = _mm_add_ps (real_P_code_acc, real_output_ps);
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imag_P_code_acc = _mm_add_ps (imag_P_code_acc, imag_output_ps);
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//Get late values
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y1 = _mm_load_si128((__m128i*)L_code_ptr);
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L_code_ptr += 4;
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y2 = _mm_load_si128((__m128i*)L_code_ptr);
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CM_16IC_X2_CW_CORR_32FC_X2_U_SSE4_1(y1, y2, realy, imagy, real_bb_signal_sample, imag_bb_signal_sample,realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output, input_i_1, input_i_2, output_i32, real_output_ps, imag_output_ps)
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real_L_code_acc = _mm_add_ps (real_L_code_acc, real_output_ps);
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imag_L_code_acc = _mm_add_ps (imag_L_code_acc, imag_output_ps);
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//Get very late values
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y1 = _mm_load_si128((__m128i*)VL_code_ptr);
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VL_code_ptr += 4;
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y2 = _mm_load_si128((__m128i*)VL_code_ptr);
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CM_16IC_X2_CW_CORR_32FC_X2_U_SSE4_1(y1, y2, realy, imagy, real_bb_signal_sample, imag_bb_signal_sample,realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output, input_i_1, input_i_2, output_i32, real_output_ps, imag_output_ps)
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real_VL_code_acc = _mm_add_ps (real_VL_code_acc, real_output_ps);
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imag_VL_code_acc = _mm_add_ps (imag_VL_code_acc, imag_output_ps);
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input_ptr += 4;
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carrier_ptr += 4;
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VE_code_ptr += 4;
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E_code_ptr += 4;
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P_code_ptr += 4;
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L_code_ptr += 4;
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VL_code_ptr += 4;
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}
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__VOLK_ATTR_ALIGNED(16) float real_VE_dotProductVector[4];
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__VOLK_ATTR_ALIGNED(16) float imag_VE_dotProductVector[4];
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__VOLK_ATTR_ALIGNED(16) float real_E_dotProductVector[4];
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__VOLK_ATTR_ALIGNED(16) float imag_E_dotProductVector[4];
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__VOLK_ATTR_ALIGNED(16) float real_P_dotProductVector[4];
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__VOLK_ATTR_ALIGNED(16) float imag_P_dotProductVector[4];
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__VOLK_ATTR_ALIGNED(16) float real_L_dotProductVector[4];
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__VOLK_ATTR_ALIGNED(16) float imag_L_dotProductVector[4];
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__VOLK_ATTR_ALIGNED(16) float real_VL_dotProductVector[4];
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__VOLK_ATTR_ALIGNED(16) float imag_VL_dotProductVector[4];
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_mm_store_ps((float*)real_VE_dotProductVector,real_VE_code_acc); // Store the results back into the dot product vector
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_mm_store_ps((float*)imag_VE_dotProductVector,imag_VE_code_acc); // Store the results back into the dot product vector
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_mm_store_ps((float*)real_E_dotProductVector,real_E_code_acc); // Store the results back into the dot product vector
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_mm_store_ps((float*)imag_E_dotProductVector,imag_E_code_acc); // Store the results back into the dot product vector
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_mm_store_ps((float*)real_P_dotProductVector,real_P_code_acc); // Store the results back into the dot product vector
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_mm_store_ps((float*)imag_P_dotProductVector,imag_P_code_acc); // Store the results back into the dot product vector
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_mm_store_ps((float*)real_L_dotProductVector,real_L_code_acc); // Store the results back into the dot product vector
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_mm_store_ps((float*)imag_L_dotProductVector,imag_L_code_acc); // Store the results back into the dot product vector
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_mm_store_ps((float*)real_VL_dotProductVector,real_VL_code_acc); // Store the results back into the dot product vector
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_mm_store_ps((float*)imag_VL_dotProductVector,imag_VL_code_acc); // Store the results back into the dot product vector
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|
for (int i = 0; i<4; ++i)
|
|
{
|
|
VE_out_real += real_VE_dotProductVector[i];
|
|
VE_out_imag += imag_VE_dotProductVector[i];
|
|
E_out_real += real_E_dotProductVector[i];
|
|
E_out_imag += imag_E_dotProductVector[i];
|
|
P_out_real += real_P_dotProductVector[i];
|
|
P_out_imag += imag_P_dotProductVector[i];
|
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L_out_real += real_L_dotProductVector[i];
|
|
L_out_imag += imag_L_dotProductVector[i];
|
|
VL_out_real += real_VL_dotProductVector[i];
|
|
VL_out_imag += imag_VL_dotProductVector[i];
|
|
}
|
|
*VE_out_ptr = lv_cmake(VE_out_real, VE_out_imag);
|
|
*E_out_ptr = lv_cmake(E_out_real, E_out_imag);
|
|
*P_out_ptr = lv_cmake(P_out_real, P_out_imag);
|
|
*L_out_ptr = lv_cmake(L_out_real, L_out_imag);
|
|
*VL_out_ptr = lv_cmake(VL_out_real, VL_out_imag);
|
|
}
|
|
|
|
lv_16sc_t bb_signal_sample;
|
|
for(unsigned int i=0; i < num_points%8; ++i)
|
|
{
|
|
//Perform the carrier wipe-off
|
|
bb_signal_sample = (*input_ptr++) * (*carrier_ptr++);
|
|
// Now get early, late, and prompt values for each
|
|
*VE_out_ptr += (lv_32fc_t) (bb_signal_sample * (*VE_code_ptr++));
|
|
*E_out_ptr += (lv_32fc_t) (bb_signal_sample * (*E_code_ptr++));
|
|
*P_out_ptr += (lv_32fc_t) (bb_signal_sample * (*P_code_ptr++));
|
|
*L_out_ptr += (lv_32fc_t) (bb_signal_sample * (*L_code_ptr++));
|
|
*VL_out_ptr += (lv_32fc_t) (bb_signal_sample * (*VL_code_ptr++));
|
|
}
|
|
|
|
}
|
|
#endif /* LV_HAVE_SSE4_1 */
|
|
|
|
#ifdef LV_HAVE_GENERIC
|
|
/*!
|
|
\brief Performs the carrier wipe-off mixing and the Very Early, Early, Prompt, Late and Very Vate correlation
|
|
\param input The input signal input
|
|
\param carrier The carrier signal input
|
|
\param VE_code Very Early PRN code replica input
|
|
\param E_code Early PRN code replica input
|
|
\param P_code Prompt PRN code replica input
|
|
\param L_code Late PRN code replica input
|
|
\param VL_code Very Late PRN code replica input
|
|
\param VE_out Very Early correlation output
|
|
\param E_out Early correlation output
|
|
\param P_out Prompt correlation output
|
|
\param L_out Late correlation output
|
|
\param VL_out Very Late correlation output
|
|
\param num_points The number of complex values in vectors
|
|
*/
|
|
static inline void volk_gnsssdr_16ic_x7_cw_vepl_corr_32fc_x5_a_generic(lv_32fc_t* VE_out, lv_32fc_t* E_out, lv_32fc_t* P_out, lv_32fc_t* L_out, lv_32fc_t* VL_out, const lv_16sc_t* input, const lv_16sc_t* carrier, const lv_16sc_t* VE_code, const lv_16sc_t* E_code, const lv_16sc_t* P_code, const lv_16sc_t* L_code, const lv_16sc_t* VL_code, unsigned int num_points)
|
|
{
|
|
lv_16sc_t bb_signal_sample;
|
|
lv_16sc_t tmp1;
|
|
lv_16sc_t tmp2;
|
|
lv_16sc_t tmp3;
|
|
lv_16sc_t tmp4;
|
|
lv_16sc_t tmp5;
|
|
|
|
bb_signal_sample = lv_cmake(0, 0);
|
|
|
|
*VE_out = 0;
|
|
*E_out = 0;
|
|
*P_out = 0;
|
|
*L_out = 0;
|
|
*VL_out = 0;
|
|
// perform Early, Prompt and Late correlation
|
|
|
|
for(unsigned int i=0; i < num_points; ++i)
|
|
{
|
|
//Perform the carrier wipe-off
|
|
bb_signal_sample = input[i] * carrier[i];
|
|
|
|
tmp1 = bb_signal_sample * VE_code[i];
|
|
tmp2 = bb_signal_sample * E_code[i];
|
|
tmp3 = bb_signal_sample * P_code[i];
|
|
tmp4 = bb_signal_sample * L_code[i];
|
|
tmp5 = bb_signal_sample * VL_code[i];
|
|
|
|
// Now get early, late, and prompt values for each
|
|
*VE_out += (lv_32fc_t)tmp1;
|
|
*E_out += (lv_32fc_t)tmp2;
|
|
*P_out += (lv_32fc_t)tmp3;
|
|
*L_out += (lv_32fc_t)tmp4;
|
|
*VL_out += (lv_32fc_t)tmp5;
|
|
}
|
|
}
|
|
#endif /* LV_HAVE_GENERIC */
|
|
#endif /* INCLUDED_gnsssdr_volk_gnsssdr_16ic_x7_cw_vepl_corr_32fc_x5_a_H */
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