mirrors/gnss-sdr
1
0
Fork 0
mirror of https://github.com/gnss-sdr/gnss-sdr synced 2025-01-16 04:05:46 +00:00
Code Issues Releases Wiki Activity

integrate new volk_gnsssdr kernel (16ic rotator)

Browse Source 
Kernel still under development, will use generic impl by now
This commit is contained in:
Carles Fernandez 2016-01-27 20:16:51 +01:00
parent 4e12f6ee5a
commit 5d207ffcbc
2 changed files with 4 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/algorithms/tracking/libs/cpu_multicorrelator.cc
View File

@ -129,7 +129,7 @@ bool cpu_multicorrelator::Carrier_wipeoff_multicorrelator_resampler(
//volk_32fc_x2_multiply_32fc(d_sig_doppler_wiped, d_sig_in, d_nco_in, signal_length_samples); //replaced by VOLK phase rotator
lv_32fc_t phase_offset_as_complex[1];
phase_offset_as_complex[0]= lv_cmake(std::cos(rem_carrier_phase_in_rad),-std::sin(rem_carrier_phase_in_rad));
phase_offset_as_complex[0] = lv_cmake(std::cos(rem_carrier_phase_in_rad), -std::sin(rem_carrier_phase_in_rad));
volk_32fc_s32fc_x2_rotator_32fc(d_sig_doppler_wiped, d_sig_in, std::exp(lv_32fc_t(0, -phase_step_rad)),phase_offset_as_complex, signal_length_samples);
update_local_code(signal_length_samples,rem_code_phase_chips, code_phase_step_chips);
for (int current_correlator_tap = 0; current_correlator_tap < d_n_correlators; current_correlator_tap++)

15
src/algorithms/tracking/libs/cpu_multicorrelator_16sc.cc
View File

@ -140,20 +140,11 @@ bool cpu_multicorrelator_16sc::Carrier_wipeoff_multicorrelator_resampler(
float code_phase_step_chips,
int signal_length_samples)
{
update_local_carrier(signal_length_samples, rem_carrier_phase_in_rad, phase_step_rad);
//std::cout<<"d_nco_in 16sc="<<d_nco_in[23]<<std::endl;
//volk_gnsssdr_16ic_x2_multiply_16ic_a_sse2(d_sig_doppler_wiped,d_sig_in,d_nco_in,signal_length_samples);
volk_gnsssdr_16ic_x2_multiply_16ic(d_sig_doppler_wiped, d_sig_in, d_nco_in, signal_length_samples);
//std::cout<<"d_sig_doppler_wiped 16sc="<<d_sig_doppler_wiped[23]<<std::endl;
lv_32fc_t phase_offset_as_complex[1];
phase_offset_as_complex[0] = lv_cmake(std::cos(rem_carrier_phase_in_rad), -std::sin(rem_carrier_phase_in_rad));
volk_gnsssdr_16ic_s32fc_x2_rotator_16ic(d_sig_doppler_wiped, d_sig_in, std::exp(lv_32fc_t(0, -phase_step_rad)), phase_offset_as_complex, signal_length_samples);
update_local_code(signal_length_samples, rem_code_phase_chips, code_phase_step_chips);
volk_gnsssdr_16ic_x2_dot_prod_16ic_xn(d_corr_out, d_sig_doppler_wiped, (const lv_16sc_t**)d_local_codes_resampled, d_n_correlators, signal_length_samples);
//for (int current_correlator_tap = 0; current_correlator_tap < d_n_correlators; current_correlator_tap++)
// {
// volk_gnsssdr_16ic_x2_dot_prod_16ic_a_sse2(&d_corr_out[current_correlator_tap], d_sig_doppler_wiped, d_local_codes_resampled[current_correlator_tap],signal_length_samples);
// }
return true;
}