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Added 32fc_s32f_x4_update_local_code_32fc kernel

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Added a new protokernel to substitute update_local_code function,
inside tracking: volk_gnsssdr_32fc_s32f_x4_update_local_code_32fc
Volk implementation is 7x times faster than generic implementation.
This commit is contained in:
Andrés Cecilia Luque
2014-10-01 13:39:07 +02:00
parent b2dab27cdb
commit da4288d502
4 changed files with 277 additions and 40 deletions
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74
src/algorithms/tracking/gnuradio_blocks/galileo_e1_dll_pll_veml_tracking_cc.cc
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@@ -272,12 +272,18 @@ void galileo_e1_dll_pll_veml_tracking_cc::update_local_code()
epl_loop_length_samples = d_current_prn_length_samples + very_early_late_spc_samples*2;
for (int i = 0; i < epl_loop_length_samples; i++)
{
associated_chip_index = 2 + round(fmod(tcode_half_chips - 2*d_very_early_late_spc_chips, code_length_half_chips));
d_very_early_code[i] = d_ca_code[associated_chip_index];
tcode_half_chips = tcode_half_chips + code_phase_step_half_chips;
}
volk_gnsssdr_32fc_s32f_x4_update_local_code_32fc_manual(d_very_early_code, (float) d_very_early_late_spc_chips, (float) code_length_half_chips, (float) code_phase_step_half_chips, (float) tcode_half_chips, d_ca_code, epl_loop_length_samples, "generic");
volk_gnsssdr_32fc_s32f_x4_update_local_code_32fc_manual(d_very_early_code, (float) d_very_early_late_spc_chips, (float) code_length_half_chips, (float) code_phase_step_half_chips, (float) tcode_half_chips, d_ca_code, epl_loop_length_samples, "u_sse4_1");
// float d_very_early_late_spc_chips_multiplied_by_2 = 2*d_very_early_late_spc_chips;
// for (int i = 0; i < epl_loop_length_samples; i++)
// {
// associated_chip_index = 2 + round(fmod(tcode_half_chips - d_very_early_late_spc_chips_multiplied_by_2, code_length_half_chips));
// d_very_early_code[i] = d_ca_code[associated_chip_index];
// tcode_half_chips = tcode_half_chips + code_phase_step_half_chips;
// }
memcpy(d_early_code, &d_very_early_code[very_early_late_spc_samples - early_late_spc_samples], d_current_prn_length_samples* sizeof(gr_complex));
memcpy(d_prompt_code, &d_very_early_code[very_early_late_spc_samples], d_current_prn_length_samples* sizeof(gr_complex));
memcpy(d_late_code, &d_very_early_code[very_early_late_spc_samples + early_late_spc_samples], d_current_prn_length_samples* sizeof(gr_complex));
@@ -377,32 +383,32 @@ int galileo_e1_dll_pll_veml_tracking_cc::general_work (int noutput_items,gr_vect
update_local_carrier();
//perform carrier wipe-off and compute Very Early, Early, Prompt, Late and Very Late correlation
d_correlator.Carrier_wipeoff_and_VEPL_volk(d_current_prn_length_samples,
in,
d_carr_sign,
d_very_early_code,
d_early_code,
d_prompt_code,
d_late_code,
d_very_late_code,
d_Very_Early,
d_Early,
d_Prompt,
d_Late,
d_Very_Late,
is_unaligned());
volk_gnsssdr_32fc_x7_cw_vepl_corr_32fc_x5(d_Very_Early, d_Early, d_Prompt, d_Late, d_Very_Late, in, d_carr_sign, d_very_early_code, d_early_code, d_prompt_code, d_late_code, d_very_late_code, d_current_prn_length_samples);
volk_gnsssdr_32fc_convert_16ic(d_very_early_code16, d_very_early_code, d_current_prn_length_samples);
volk_gnsssdr_32fc_convert_16ic(d_early_code16, d_early_code, d_current_prn_length_samples);
volk_gnsssdr_32fc_convert_16ic(d_prompt_code16, d_prompt_code, d_current_prn_length_samples);
volk_gnsssdr_32fc_convert_16ic(d_late_code16, d_late_code, d_current_prn_length_samples);
volk_gnsssdr_32fc_convert_16ic(d_very_late_code16, d_very_late_code, d_current_prn_length_samples);
volk_gnsssdr_32fc_convert_16ic(in16, in, d_current_prn_length_samples);
volk_gnsssdr_32fc_convert_16ic(d_carr_sign16, d_carr_sign, d_current_prn_length_samples);
volk_gnsssdr_16ic_x7_cw_vepl_corr_32fc_x5(d_Very_Early, d_Early, d_Prompt, d_Late, d_Very_Late, in16, d_carr_sign16, d_very_early_code16, d_early_code16, d_prompt_code16, d_late_code16, d_very_late_code16, d_current_prn_length_samples);
// d_correlator.Carrier_wipeoff_and_VEPL_volk(d_current_prn_length_samples,
// in,
// d_carr_sign,
// d_very_early_code,
// d_early_code,
// d_prompt_code,
// d_late_code,
// d_very_late_code,
// d_Very_Early,
// d_Early,
// d_Prompt,
// d_Late,
// d_Very_Late,
// is_unaligned());
//
// volk_gnsssdr_32fc_x7_cw_vepl_corr_32fc_x5(d_Very_Early, d_Early, d_Prompt, d_Late, d_Very_Late, in, d_carr_sign, d_very_early_code, d_early_code, d_prompt_code, d_late_code, d_very_late_code, d_current_prn_length_samples);
//
// volk_gnsssdr_32fc_convert_16ic(d_very_early_code16, d_very_early_code, d_current_prn_length_samples);
// volk_gnsssdr_32fc_convert_16ic(d_early_code16, d_early_code, d_current_prn_length_samples);
// volk_gnsssdr_32fc_convert_16ic(d_prompt_code16, d_prompt_code, d_current_prn_length_samples);
// volk_gnsssdr_32fc_convert_16ic(d_late_code16, d_late_code, d_current_prn_length_samples);
// volk_gnsssdr_32fc_convert_16ic(d_very_late_code16, d_very_late_code, d_current_prn_length_samples);
// volk_gnsssdr_32fc_convert_16ic(in16, in, d_current_prn_length_samples);
// volk_gnsssdr_32fc_convert_16ic(d_carr_sign16, d_carr_sign, d_current_prn_length_samples);
//
// volk_gnsssdr_16ic_x7_cw_vepl_corr_32fc_x5(d_Very_Early, d_Early, d_Prompt, d_Late, d_Very_Late, in16, d_carr_sign16, d_very_early_code16, d_early_code16, d_prompt_code16, d_late_code16, d_very_late_code16, d_current_prn_length_samples);
volk_gnsssdr_32fc_convert_8ic(d_very_early_code8, d_very_early_code, d_current_prn_length_samples);
volk_gnsssdr_32fc_convert_8ic(d_early_code8, d_early_code, d_current_prn_length_samples);
@@ -412,9 +418,9 @@ int galileo_e1_dll_pll_veml_tracking_cc::general_work (int noutput_items,gr_vect
volk_gnsssdr_32fc_convert_8ic(d_carr_sign8, d_carr_sign, d_current_prn_length_samples);
volk_gnsssdr_32fc_s32f_convert_8ic(in8, in, 4, d_current_prn_length_samples);
volk_gnsssdr_8ic_x7_cw_vepl_corr_32fc_x5(d_Very_Early, d_Early, d_Prompt, d_Late, d_Very_Late, in8, d_carr_sign8, d_very_early_code8, d_early_code8, d_prompt_code8, d_late_code8, d_very_late_code8, d_current_prn_length_samples);
//volk_gnsssdr_8ic_x7_cw_vepl_corr_32fc_x5(d_Very_Early, d_Early, d_Prompt, d_Late, d_Very_Late, in8, d_carr_sign8, d_very_early_code8, d_early_code8, d_prompt_code8, d_late_code8, d_very_late_code8, d_current_prn_length_samples);
volk_gnsssdr_8ic_x7_cw_vepl_corr_unsafe_32fc_x5(d_Very_Early, d_Early, d_Prompt, d_Late, d_Very_Late, in8, d_carr_sign8, d_very_early_code8, d_early_code8, d_prompt_code8, d_late_code8, d_very_late_code8, d_current_prn_length_samples);
//volk_gnsssdr_8ic_x7_cw_vepl_corr_unsafe_32fc_x5(d_Very_Early, d_Early, d_Prompt, d_Late, d_Very_Late, in8, d_carr_sign8, d_very_early_code8, d_early_code8, d_prompt_code8, d_late_code8, d_very_late_code8, d_current_prn_length_samples);
volk_gnsssdr_8ic_x7_cw_vepl_corr_safe_32fc_x5(d_Very_Early, d_Early, d_Prompt, d_Late, d_Very_Late, in8, d_carr_sign8, d_very_early_code8, d_early_code8, d_prompt_code8, d_late_code8, d_very_late_code8, d_current_prn_length_samples);