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chg: psk demodualtion, lets keep those starting samples to easily find the zero init bit

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This commit is contained in:
iceman1001 2020-05-13 17:29:56 +02:00
parent b4cc7a9ad3
commit 9af1807122
1 changed files with 0 additions and 10 deletions
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10
client/src/cmdlft55xx.c
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@ -960,24 +960,14 @@ bool DecodeT55xxBlock(void) {
ans = ASKDemod_ext(cmdStr, false, false, 1, &ST); ans = ASKDemod_ext(cmdStr, false, false, 1, &ST);
break; break;
case DEMOD_PSK1: case DEMOD_PSK1:
// skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise)
save_restoreGB(GRAPH_SAVE);
CmdLtrim("150");
snprintf(cmdStr, sizeof(buf), "%d %d 6", bitRate[config.bitrate], config.inverted); snprintf(cmdStr, sizeof(buf), "%d %d 6", bitRate[config.bitrate], config.inverted);
ans = PSKDemod(cmdStr, false); ans = PSKDemod(cmdStr, false);
//undo trim samples
save_restoreGB(GRAPH_RESTORE);
break; break;
case DEMOD_PSK2: //inverted won't affect this case DEMOD_PSK2: //inverted won't affect this
case DEMOD_PSK3: //not fully implemented case DEMOD_PSK3: //not fully implemented
// skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise)
save_restoreGB(GRAPH_SAVE);
CmdLtrim("150");
snprintf(cmdStr, sizeof(buf), "%d 0 6", bitRate[config.bitrate]); snprintf(cmdStr, sizeof(buf), "%d 0 6", bitRate[config.bitrate]);
ans = PSKDemod(cmdStr, false); ans = PSKDemod(cmdStr, false);
psk1TOpsk2(DemodBuffer, DemodBufferLen); psk1TOpsk2(DemodBuffer, DemodBufferLen);
//undo trim samples
save_restoreGB(GRAPH_RESTORE);
break; break;
case DEMOD_NRZ: case DEMOD_NRZ:
snprintf(cmdStr, sizeof(buf), "%d %d 1", bitRate[config.bitrate], config.inverted); snprintf(cmdStr, sizeof(buf), "%d %d 1", bitRate[config.bitrate], config.inverted);