diff options
Diffstat (limited to 'unittest/tofdm_acq.c')
| -rw-r--r-- | unittest/tofdm_acq.c | 142 |
1 files changed, 72 insertions, 70 deletions
diff --git a/unittest/tofdm_acq.c b/unittest/tofdm_acq.c index ee04d5e..cfb0f99 100644 --- a/unittest/tofdm_acq.c +++ b/unittest/tofdm_acq.c @@ -4,89 +4,91 @@ AUTHORS.....: David Rowe DATE CREATED: Mar 2021 - Tests for the acquistion (sync) parts of the C version of the OFDM modem. - This program outputs a file of Octave vectors that are loaded and - automatically tested against the Octave version of the modem by the Octave + Tests for the acquistion (sync) parts of the C version of the OFDM modem. + This program outputs a file of Octave vectors that are loaded and + automatically tested against the Octave version of the modem by the Octave script tofdm_acq.m \*---------------------------------------------------------------------------*/ #include <assert.h> +#include <math.h> +#include <stdint.h> #include <stdio.h> #include <stdlib.h> -#include <stdint.h> #include <string.h> -#include <math.h> -#include "ofdm_internal.h" #include "codec2_ofdm.h" #include "octave.h" +#include "ofdm_internal.h" #define MAX_FRAMES 500 -int main(int argc, char *argv[]) -{ - struct OFDM *ofdm; - struct OFDM_CONFIG ofdm_config; - - ofdm_init_mode("datac0", &ofdm_config); - ofdm = ofdm_create(&ofdm_config); - ofdm->data_mode = "burst"; - ofdm->verbose = 2; - ofdm->timing_mx_thresh = 0.15; - ofdm->postambledetectoren = 1; - assert(ofdm != NULL); - - int nin = ofdm_get_nin(ofdm); - int rxbufst = ofdm->rxbufst; - - FILE *fin = fopen(argv[1],"rb"); assert(fin != NULL); - short rx_scaled[ofdm_get_max_samples_per_frame(ofdm)]; - int f = 0; - - float timing_mx_log[MAX_FRAMES]; - int ct_est_log[MAX_FRAMES]; - float foff_est_log[MAX_FRAMES]; - int timing_valid_log[MAX_FRAMES]; - int nin_log[MAX_FRAMES]; - - while (fread(rx_scaled, sizeof (short), nin, fin) == nin) { - fprintf(stderr, "%3d ", f); - ofdm_sync_search_shorts(ofdm, rx_scaled, ofdm->amp_scale / 2.0f); - - if (f < MAX_FRAMES) { - timing_mx_log[f] = ofdm->timing_mx; - ct_est_log[f] = ofdm->ct_est; - foff_est_log[f] = ofdm->foff_est_hz; - timing_valid_log[f] = ofdm->timing_valid; - nin_log[f] = ofdm->nin; - } - f++; - - // reset these to defaults, as they get modified when timing_valid asserted - ofdm->nin = nin; - ofdm->rxbufst = rxbufst; +int main(int argc, char *argv[]) { + struct OFDM *ofdm; + struct OFDM_CONFIG ofdm_config; + + ofdm_init_mode("datac0", &ofdm_config); + ofdm = ofdm_create(&ofdm_config); + ofdm->data_mode = "burst"; + ofdm->verbose = 2; + ofdm->timing_mx_thresh = 0.15; + ofdm->postambledetectoren = 1; + assert(ofdm != NULL); + + int nin = ofdm_get_nin(ofdm); + int rxbufst = ofdm->rxbufst; + + FILE *fin = fopen(argv[1], "rb"); + assert(fin != NULL); + short rx_scaled[ofdm_get_max_samples_per_frame(ofdm)]; + int f = 0; + + float timing_mx_log[MAX_FRAMES]; + int ct_est_log[MAX_FRAMES]; + float foff_est_log[MAX_FRAMES]; + int timing_valid_log[MAX_FRAMES]; + int nin_log[MAX_FRAMES]; + + while (fread(rx_scaled, sizeof(short), nin, fin) == nin) { + fprintf(stderr, "%3d ", f); + ofdm_sync_search_shorts(ofdm, rx_scaled, ofdm->amp_scale / 2.0f); + + if (f < MAX_FRAMES) { + timing_mx_log[f] = ofdm->timing_mx; + ct_est_log[f] = ofdm->ct_est; + foff_est_log[f] = ofdm->foff_est_hz; + timing_valid_log[f] = ofdm->timing_valid; + nin_log[f] = ofdm->nin; } - fclose(fin); - - /*---------------------------------------------------------*\ - Dump logs to Octave file for evaluation - by tofdm_acq.m Octave script - \*---------------------------------------------------------*/ - - FILE *fout = fopen("tofdm_acq_out.txt","wt"); - assert(fout != NULL); - fprintf(fout, "# Created by tofdm_acq.c\n"); - octave_save_complex(fout, "tx_preamble_c", (COMP*)ofdm->tx_preamble, 1, ofdm->samplesperframe, ofdm->samplesperframe); - octave_save_complex(fout, "tx_postamble_c", (COMP*)ofdm->tx_postamble, 1, ofdm->samplesperframe, ofdm->samplesperframe); - octave_save_float(fout, "timing_mx_log_c", timing_mx_log, 1, f, f); - octave_save_float(fout, "foff_est_log_c", foff_est_log, 1, f, f); - octave_save_int(fout, "ct_est_log_c", ct_est_log, 1, f); - octave_save_int(fout, "timing_valid_log_c", timing_valid_log, 1, f); - octave_save_int(fout, "nin_log_c", nin_log, 1, f); - fclose(fout); - - ofdm_destroy(ofdm); - - return 0; + f++; + + // reset these to defaults, as they get modified when timing_valid asserted + ofdm->nin = nin; + ofdm->rxbufst = rxbufst; + } + fclose(fin); + + /*---------------------------------------------------------*\ + Dump logs to Octave file for evaluation + by tofdm_acq.m Octave script + \*---------------------------------------------------------*/ + + FILE *fout = fopen("tofdm_acq_out.txt", "wt"); + assert(fout != NULL); + fprintf(fout, "# Created by tofdm_acq.c\n"); + octave_save_complex(fout, "tx_preamble_c", (COMP *)ofdm->tx_preamble, 1, + ofdm->samplesperframe, ofdm->samplesperframe); + octave_save_complex(fout, "tx_postamble_c", (COMP *)ofdm->tx_postamble, 1, + ofdm->samplesperframe, ofdm->samplesperframe); + octave_save_float(fout, "timing_mx_log_c", timing_mx_log, 1, f, f); + octave_save_float(fout, "foff_est_log_c", foff_est_log, 1, f, f); + octave_save_int(fout, "ct_est_log_c", ct_est_log, 1, f); + octave_save_int(fout, "timing_valid_log_c", timing_valid_log, 1, f); + octave_save_int(fout, "nin_log_c", nin_log, 1, f); + fclose(fout); + + ofdm_destroy(ofdm); + + return 0; } |