rtlsdr-wsprd/wsprd/wsprd.h

80 wiersze
2.6 KiB
C

/*
This file is part of program wsprd, a detector/demodulator/decoder
for the Weak Signal Propagation Reporter (WSPR) mode.
File name: wsprd.c
Copyright 2001-2015, Joe Taylor, K1JT
Much of the present code is based on work by Steven Franke, K9AN,
which in turn was based on earlier work by K1JT.
Copyright 2014-2015, Steven Franke, K9AN
Minor modifications
Copyright 2016, Guenael Jouchet, VA2GKA
License: GNU GPL v3
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
/* Option & config of decoder (Shared with the wsprd code) */
struct decoder_options {
uint32_t freq; // Dial frequency
char rcall[13]; // Callsign of the RX station
char rloc[7]; // Locator of the RX station
uint32_t quickmode; // Decoder option & tweak
uint32_t usehashtable; // ''
uint32_t npasses; // ''
uint32_t subtraction; // ''
};
struct cand {
float freq;
float snr;
int shift;
float drift;
float sync;
};
struct decoder_results {
double freq;
float sync;
float snr;
float dt;
float drift;
int32_t jitter;
char message[23];
char call[13];
char loc[7];
char pwr[3];
uint32_t cycles;
};
void sync_and_demodulate(float *id, float *qd, long np,
unsigned char *symbols, float *f1, int ifmin, int ifmax, float fstep,
int *shift1, int lagmin, int lagmax, int lagstep,
float *drift1, int symfac, float *sync, int mode);
void subtract_signal(float *id, float *qd, long np,
float f0, int shift0, float drift0, unsigned char *channel_symbols);
void subtract_signal2(float *id, float *qd, long np,
float f0, int shift0, float drift0, unsigned char *channel_symbols);
int32_t wspr_decode(float *idat, float *qdat, int samples,
struct decoder_options options, struct decoder_results *decodes,
int32_t *n_results);