#include <inttypes.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "spandsp/telephony.h"
#include "spandsp/logging.h"
#include "spandsp/complex.h"
#include "spandsp/vector_float.h"
#include "spandsp/complex_vector_float.h"
#include "spandsp/async.h"
#include "spandsp/power_meter.h"
#include "spandsp/arctan2.h"
#include "spandsp/dds.h"
#include "spandsp/complex_filters.h"
#include "spandsp/v29rx.h"
#include "spandsp/v27ter_rx.h"
#include "v27ter_rx_4800_floating_rrc.h"
#include "v27ter_rx_2400_floating_rrc.h"
Defines | |
#define | CARRIER_NOMINAL_FREQ 1800.0f |
#define | EQUALIZER_DELTA 0.25f |
#define | V27TER_TRAINING_SEG_3_LEN 50 |
#define | V27TER_TRAINING_SEG_5_LEN 1074 |
#define | V27TER_TRAINING_SEG_6_LEN 8 |
Enumerations | |
enum | { TRAINING_STAGE_NORMAL_OPERATION = 0, TRAINING_STAGE_SYMBOL_ACQUISITION, TRAINING_STAGE_LOG_PHASE, TRAINING_STAGE_WAIT_FOR_HOP, TRAINING_STAGE_TRAIN_ON_ABAB, TRAINING_STAGE_TEST_ONES, TRAINING_STAGE_PARKED } |
Functions | |
float | v27ter_rx_carrier_frequency (v27ter_rx_state_t *s) |
float | v27ter_rx_symbol_timing_correction (v27ter_rx_state_t *s) |
float | v27ter_rx_signal_power (v27ter_rx_state_t *s) |
void | v27ter_rx_signal_cutoff (v27ter_rx_state_t *s, float cutoff) |
int | v27ter_rx_equalizer_state (v27ter_rx_state_t *s, complexf_t **coeffs) |
Get a snapshot of the current equalizer coefficients. | |
int | v27ter_rx (v27ter_rx_state_t *s, const int16_t amp[], int len) |
Process a block of received V.27ter modem audio samples. | |
void | v27ter_rx_set_put_bit (v27ter_rx_state_t *s, put_bit_func_t put_bit, void *user_data) |
Change the put_bit function associated with a V.27ter modem receive context. | |
int | v27ter_rx_restart (v27ter_rx_state_t *s, int bit_rate, int old_train) |
Reinitialise an existing V.27ter modem receive context. | |
v27ter_rx_state_t * | v27ter_rx_init (v27ter_rx_state_t *s, int bit_rate, put_bit_func_t put_bit, void *user_data) |
Initialise a V.27ter modem receive context. | |
int | v27ter_rx_free (v27ter_rx_state_t *s) |
Free a V.27ter modem receive context. | |
void | v27ter_rx_set_qam_report_handler (v27ter_rx_state_t *s, qam_report_handler_t *handler, void *user_data) |
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Process a block of received V.27ter modem audio samples. Process a block of received V.27ter modem audio samples.
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Get the current received carrier frequency.
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Get a snapshot of the current equalizer coefficients. Get a snapshot of the current equalizer coefficients.
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Free a V.27ter modem receive context. Free a V.27ter modem receive context.
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Initialise a V.27ter modem receive context. Initialise a V.27ter modem receive context.
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Reinitialise an existing V.27ter modem receive context. Reinitialise an existing V.27ter modem receive context.
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Change the put_bit function associated with a V.27ter modem receive context. Change the put_bit function associated with a V.27ter modem receive context.
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Set a handler routine to process QAM status reports
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Set the power level at which the carrier detection will cut in
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Get a current received signal power.
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Get the current symbol timing correction since startup.
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