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chg: 'data autocorrelate g' - visual with gridclock patter and markup of two tops. Also added a "visual" inspection of peaks with 3% tolerance. This increases usability quite much.

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Chris 2019-02-25 12:44:21 +01:00
parent a8eb0fd05f
commit 711d384e7d
1 changed files with 41 additions and 7 deletions
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46
client/cmddata.c
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@ -755,18 +755,52 @@ int AutoCorrelate(const int *in, int *out, size_t len, int window, bool SaveGrph
} }
} }
if (verbose && ( correlation > 1 ) ) { //
PrintAndLogEx(SUCCESS, "possible correlation %4d samples", correlation); int hi = 0, idx = 0;
} else { int distance = 0, hi_1 = 0, idx_1 = 0;
PrintAndLogEx(FAILED, "no repeating pattern found"); for (int i=0; i<=len; ++i){
if ( CorrelBuffer[i] > hi) {
hi = CorrelBuffer[i];
idx = i;
}
} }
if (SaveGrph){ for (int i=idx+1; i<=window; ++i){
if ( CorrelBuffer[i] > hi_1 ) {
hi_1 = CorrelBuffer[i];
idx_1 = i;
}
}
int foo = ABS(hi-hi_1);
int bar = ((int)(((hi+hi_1) / 2) * 0.03));
if ( verbose && foo < bar ) {
distance = idx_1 - idx;
PrintAndLogEx(SUCCESS, "possible 3% visible correlation %4d samples", distance);
} else if (verbose && ( correlation > 1 ) ) {
PrintAndLogEx(SUCCESS, "possible correlation %4d samples", correlation);
} else {
PrintAndLogEx(FAILED, "no repeating pattern found, try increasing window size");
}
int retval = correlation;
if (SaveGrph) {
//GraphTraceLen = GraphTraceLen - window; //GraphTraceLen = GraphTraceLen - window;
memcpy(out, CorrelBuffer, len * sizeof(int)); memcpy(out, CorrelBuffer, len * sizeof(int));
if ( distance > 0) {
setClockGrid(distance, idx);
retval = distance;
}
else
setClockGrid(correlation, idx);
CursorCPos = idx_1;
CursorDPos = idx_1+retval;
DemodBufferLen = 0;
RepaintGraphWindow(); RepaintGraphWindow();
} }
return correlation;
return retval;
} }
int CmdAutoCorr(const char *Cmd) { int CmdAutoCorr(const char *Cmd) {