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Fix acquisition with rata rates higher than 16 Msps in 4ms code periods

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while not requiring a very recent version of VOLK
This commit is contained in:
Carles Fernandez 2016-09-19 09:06:40 +02:00
parent 7e0e99dc4b
commit 438ba45c16
12 changed files with 23 additions and 49 deletions
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26
src/algorithms/acquisition/gnuradio_blocks/CMakeLists.txt
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@ -47,32 +47,6 @@ include_directories(
)
## Workaround for issues with the change of VOLK API
## See https://github.com/gnuradio/volk/issues/84
## and https://github.com/gnss-sdr/gnss-sdr/issues/31
if(NOT VOLK_VERSION)
set(VOLK_VERSION "1.2.2")
endif(NOT VOLK_VERSION)
if(VOLK_VERSION VERSION_EQUAL 1.2.2)
find_file(VOLK_GREATER_THAN_122
NAMES volk/volk_32f_index_max_32u.h
HINTS ${CMAKE_INSTALL_PREFIX}/include
PATHS /usr/local/include
/usr/include
${CMAKE_INSTALL_PREFIX}/include
)
if(VOLK_GREATER_THAN_122)
set(VOLK_VERSION "1.2.3+")
endif(VOLK_GREATER_THAN_122)
endif(VOLK_VERSION VERSION_EQUAL 1.2.2)
if(VOLK_VERSION VERSION_GREATER 1.2.2)
add_definitions(-DVOLK_GT_122=1)
endif(VOLK_VERSION VERSION_GREATER 1.2.2)
if(OPENCL_FOUND)
include_directories( ${OPENCL_INCLUDE_DIRS} )
if(OS_IS_MACOSX)

16
src/algorithms/acquisition/gnuradio_blocks/galileo_e5a_noncoherent_iq_acquisition_caf_cc.cc
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@ -475,7 +475,7 @@ int galileo_e5a_noncoherentIQ_acquisition_caf_cc::general_work(int noutput_items
// Search maximum
volk_32fc_magnitude_squared_32f(d_magnitudeIA, d_ifft->get_outbuf(), d_fft_size);
volk_32f_index_max_32u(&indext_IA, d_magnitudeIA, d_fft_size);
volk_gnsssdr_32f_index_max_32u(&indext_IA, d_magnitudeIA, d_fft_size);
// Normalize the maximum value to correct the scale factor introduced by FFTW
magt_IA = d_magnitudeIA[indext_IA] / (fft_normalization_factor * fft_normalization_factor);
@ -486,7 +486,7 @@ int galileo_e5a_noncoherentIQ_acquisition_caf_cc::general_work(int noutput_items
d_fft_if->get_outbuf(), d_fft_code_Q_A, d_fft_size);
d_ifft->execute();
volk_32fc_magnitude_squared_32f(d_magnitudeQA, d_ifft->get_outbuf(), d_fft_size);
volk_32f_index_max_32u(&indext_QA, d_magnitudeQA, d_fft_size);
volk_gnsssdr_32f_index_max_32u(&indext_QA, d_magnitudeQA, d_fft_size);
magt_QA = d_magnitudeQA[indext_QA] / (fft_normalization_factor * fft_normalization_factor);
}
if (d_sampled_ms > 1) // If Integration time > 1 code
@ -496,7 +496,7 @@ int galileo_e5a_noncoherentIQ_acquisition_caf_cc::general_work(int noutput_items
d_fft_if->get_outbuf(), d_fft_code_I_B, d_fft_size);
d_ifft->execute();
volk_32fc_magnitude_squared_32f(d_magnitudeIB, d_ifft->get_outbuf(), d_fft_size);
volk_32f_index_max_32u(&indext_IB, d_magnitudeIB, d_fft_size);
volk_gnsssdr_32f_index_max_32u(&indext_IB, d_magnitudeIB, d_fft_size);
magt_IB = d_magnitudeIB[indext_IB] / (fft_normalization_factor * fft_normalization_factor);
if (d_both_signal_components == true)
@ -506,7 +506,7 @@ int galileo_e5a_noncoherentIQ_acquisition_caf_cc::general_work(int noutput_items
d_fft_if->get_outbuf(), d_fft_code_Q_B, d_fft_size);
d_ifft->execute();
volk_32fc_magnitude_squared_32f(d_magnitudeQB, d_ifft->get_outbuf(), d_fft_size);
volk_32f_index_max_32u(&indext_QB, d_magnitudeQB, d_fft_size);
volk_gnsssdr_32f_index_max_32u(&indext_QB, d_magnitudeQB, d_fft_size);
magt_QB = d_magnitudeIB[indext_QB] / (fft_normalization_factor * fft_normalization_factor);
}
}
@ -543,7 +543,7 @@ int galileo_e5a_noncoherentIQ_acquisition_caf_cc::general_work(int noutput_items
}
}
}
volk_32f_index_max_32u(&indext, d_magnitudeIA, d_fft_size);
volk_gnsssdr_32f_index_max_32u(&indext, d_magnitudeIA, d_fft_size);
magt = d_magnitudeIA[indext] / (fft_normalization_factor * fft_normalization_factor);
}
else
@ -572,7 +572,7 @@ int galileo_e5a_noncoherentIQ_acquisition_caf_cc::general_work(int noutput_items
}
}
}
volk_32f_index_max_32u(&indext, d_magnitudeIB, d_fft_size);
volk_gnsssdr_32f_index_max_32u(&indext, d_magnitudeIB, d_fft_size);
magt = d_magnitudeIB[indext] / (fft_normalization_factor * fft_normalization_factor);
}
}
@ -590,7 +590,7 @@ int galileo_e5a_noncoherentIQ_acquisition_caf_cc::general_work(int noutput_items
d_magnitudeIA[i] += d_magnitudeQA[i];
}
}
volk_32f_index_max_32u(&indext, d_magnitudeIA, d_fft_size);
volk_gnsssdr_32f_index_max_32u(&indext, d_magnitudeIA, d_fft_size);
magt = d_magnitudeIA[indext] / (fft_normalization_factor * fft_normalization_factor);
}
@ -728,7 +728,7 @@ int galileo_e5a_noncoherentIQ_acquisition_caf_cc::general_work(int noutput_items
}
// Recompute the maximum doppler peak
volk_32f_index_max_32u(&indext, d_CAF_vector, d_num_doppler_bins);
volk_gnsssdr_32f_index_max_32u(&indext, d_CAF_vector, d_num_doppler_bins);
doppler = -static_cast<int>(d_doppler_max) + d_doppler_step * indext;
d_gnss_synchro->Acq_doppler_hz = static_cast<double>(doppler);
// Dump if required, appended at the end of the file

4
src/algorithms/acquisition/gnuradio_blocks/galileo_pcps_8ms_acquisition_cc.cc
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@ -293,7 +293,7 @@ int galileo_pcps_8ms_acquisition_cc::general_work(int noutput_items,
// Search maximum
volk_32fc_magnitude_squared_32f(d_magnitude, d_ifft->get_outbuf(), d_fft_size);
volk_32f_index_max_32u(&indext_A, d_magnitude, d_fft_size);
volk_gnsssdr_32f_index_max_32u(&indext_A, d_magnitude, d_fft_size);
// Normalize the maximum value to correct the scale factor introduced by FFTW
magt_A = d_magnitude[indext_A] / (fft_normalization_factor * fft_normalization_factor);
@ -309,7 +309,7 @@ int galileo_pcps_8ms_acquisition_cc::general_work(int noutput_items,
// Search maximum
volk_32fc_magnitude_squared_32f(d_magnitude, d_ifft->get_outbuf(), d_fft_size);
volk_32f_index_max_32u(&indext_B, d_magnitude, d_fft_size);
volk_gnsssdr_32f_index_max_32u(&indext_B, d_magnitude, d_fft_size);
// Normalize the maximum value to correct the scale factor introduced by FFTW
magt_B = d_magnitude[indext_B] / (fft_normalization_factor * fft_normalization_factor);

2
src/algorithms/acquisition/gnuradio_blocks/pcps_acquisition_cc.cc
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@ -336,7 +336,7 @@ int pcps_acquisition_cc::general_work(int noutput_items,
// Search maximum
size_t offset = ( d_bit_transition_flag ? effective_fft_size : 0 );
volk_32fc_magnitude_squared_32f(d_magnitude, d_ifft->get_outbuf() + offset, effective_fft_size);
volk_32f_index_max_32u(&indext, d_magnitude, effective_fft_size);
volk_gnsssdr_32f_index_max_32u(&indext, d_magnitude, effective_fft_size);
magt = d_magnitude[indext];
if (d_use_CFAR_algorithm_flag == true)

4
src/algorithms/acquisition/gnuradio_blocks/pcps_acquisition_fine_doppler_cc.cc
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@ -227,7 +227,7 @@ double pcps_acquisition_fine_doppler_cc::search_maximum()
for (int i=0;i<d_num_doppler_points;i++)
{
volk_32f_index_max_32u(&tmp_intex_t, d_grid_data[i], d_fft_size);
volk_gnsssdr_32f_index_max_32u(&tmp_intex_t, d_grid_data[i], d_fft_size);
if (d_grid_data[i][tmp_intex_t] > magt)
{
magt = d_grid_data[i][tmp_intex_t];
@ -360,7 +360,7 @@ int pcps_acquisition_fine_doppler_cc::estimate_Doppler(gr_vector_const_void_star
volk_32fc_magnitude_squared_32f(p_tmp_vector, fft_operator->get_outbuf(), fft_size_extended);
uint32_t tmp_index_freq = 0;
volk_32f_index_max_32u(&tmp_index_freq, p_tmp_vector, fft_size_extended);
volk_gnsssdr_32f_index_max_32u(&tmp_index_freq, p_tmp_vector, fft_size_extended);
//case even
int counter = 0;

2
src/algorithms/acquisition/gnuradio_blocks/pcps_acquisition_sc.cc
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@ -334,7 +334,7 @@ int pcps_acquisition_sc::general_work(int noutput_items,
// Search maximum
size_t offset = ( d_bit_transition_flag ? effective_fft_size : 0 );
volk_32fc_magnitude_squared_32f(d_magnitude, d_ifft->get_outbuf() + offset, effective_fft_size);
volk_32f_index_max_32u(&indext, d_magnitude, effective_fft_size);
volk_gnsssdr_32f_index_max_32u(&indext, d_magnitude, effective_fft_size);
magt = d_magnitude[indext];
if (d_use_CFAR_algorithm_flag == true)

2
src/algorithms/acquisition/gnuradio_blocks/pcps_assisted_acquisition_cc.cc
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@ -273,7 +273,7 @@ double pcps_assisted_acquisition_cc::search_maximum()
for (int i=0;i<d_num_doppler_points;i++)
{
volk_32f_index_max_32u_a(&tmp_intex_t,d_grid_data[i],d_fft_size);
volk_gnsssdr_32f_index_max_32u(&tmp_intex_t,d_grid_data[i],d_fft_size);
if (d_grid_data[i][tmp_intex_t] > magt)
{
magt = d_grid_data[i][index_time];

4
src/algorithms/acquisition/gnuradio_blocks/pcps_cccwsr_acquisition_cc.cc
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@ -331,11 +331,11 @@ int pcps_cccwsr_acquisition_cc::general_work(int noutput_items,
}
volk_32fc_magnitude_squared_32f(d_magnitude, d_correlation_plus, d_fft_size);
volk_32f_index_max_32u(&indext_plus, d_magnitude, d_fft_size);
volk_gnsssdr_32f_index_max_32u(&indext_plus, d_magnitude, d_fft_size);
magt_plus = d_magnitude[indext_plus] / (fft_normalization_factor * fft_normalization_factor);
volk_32fc_magnitude_squared_32f(d_magnitude, d_correlation_minus, d_fft_size);
volk_32f_index_max_32u(&indext_minus, d_magnitude, d_fft_size);
volk_gnsssdr_32f_index_max_32u(&indext_minus, d_magnitude, d_fft_size);
magt_minus = d_magnitude[indext_minus] / (fft_normalization_factor * fft_normalization_factor);
if (magt_plus >= magt_minus)

2
src/algorithms/acquisition/gnuradio_blocks/pcps_multithread_acquisition_cc.cc
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@ -246,7 +246,7 @@ void pcps_multithread_acquisition_cc::acquisition_core()
// Search maximum
volk_32fc_magnitude_squared_32f(d_magnitude, d_ifft->get_outbuf(), d_fft_size);
volk_32f_index_max_32u(&indext, d_magnitude, d_fft_size);
volk_gnsssdr_32f_index_max_32u(&indext, d_magnitude, d_fft_size);
// Normalize the maximum value to correct the scale factor introduced by FFTW
magt = d_magnitude[indext] / (fft_normalization_factor * fft_normalization_factor);

4
src/algorithms/acquisition/gnuradio_blocks/pcps_opencl_acquisition_cc.cc
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@ -431,7 +431,7 @@ void pcps_opencl_acquisition_cc::acquisition_core_volk()
// Search maximum
volk_32fc_magnitude_squared_32f(d_magnitude, d_ifft->get_outbuf(), d_fft_size);
volk_32f_index_max_32u(&indext, d_magnitude, d_fft_size);
volk_gnsssdr_32f_index_max_32u(&indext, d_magnitude, d_fft_size);
// Normalize the maximum value to correct the scale factor introduced by FFTW
magt = d_magnitude[indext] / (fft_normalization_factor * fft_normalization_factor);
@ -593,7 +593,7 @@ void pcps_opencl_acquisition_cc::acquisition_core_opencl()
// Search maximum
// @TODO: find an efficient way to search the maximum with OpenCL in the GPU.
volk_32f_index_max_32u(&indext, d_magnitude, d_fft_size);
volk_gnsssdr_32f_index_max_32u(&indext, d_magnitude, d_fft_size);
// Normalize the maximum value to correct the scale factor introduced by FFTW
magt = d_magnitude[indext] / (fft_normalization_factor * fft_normalization_factor);

4
src/algorithms/acquisition/gnuradio_blocks/pcps_quicksync_acquisition_cc.cc
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@ -401,7 +401,7 @@ int pcps_quicksync_acquisition_cc::general_work(int noutput_items,
introduced by FFTW*/
//volk_32f_s32f_multiply_32f_a(d_magnitude_folded,d_magnitude_folded,
// (1 / (fft_normalization_factor * fft_normalization_factor)), d_fft_size);
volk_32f_index_max_32u(&indext, d_magnitude_folded, d_fft_size);
volk_gnsssdr_32f_index_max_32u(&indext, d_magnitude_folded, d_fft_size);
magt = d_magnitude_folded[indext] / (fft_normalization_factor * fft_normalization_factor);
@ -454,7 +454,7 @@ int pcps_quicksync_acquisition_cc::general_work(int noutput_items,
}
/*Obtain maximun value of correlation given the possible delay selected */
volk_32fc_magnitude_squared_32f(d_corr_output_f, complex_acumulator, d_folding_factor);
volk_32f_index_max_32u(&indext, d_corr_output_f, d_folding_factor);
volk_gnsssdr_32f_index_max_32u(&indext, d_corr_output_f, d_folding_factor);
/*Now save the real code phase in the gnss_syncro block for use in other stages*/
d_gnss_synchro->Acq_delay_samples = static_cast<double>(d_possible_delay[indext]);

2
src/algorithms/acquisition/gnuradio_blocks/pcps_tong_acquisition_cc.cc
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@ -335,7 +335,7 @@ int pcps_tong_acquisition_cc::general_work(int noutput_items,
volk_32f_x2_add_32f(d_grid_data[doppler_index], d_magnitude, d_grid_data[doppler_index], d_fft_size);
// Search maximum
volk_32f_index_max_32u(&indext, d_grid_data[doppler_index], d_fft_size);
volk_gnsssdr_32f_index_max_32u(&indext, d_grid_data[doppler_index], d_fft_size);
magt = d_grid_data[doppler_index][indext];