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Crosscorrel.cpp@0:61544337ff5e, 2018-05-03 (annotated)

Committer:
gunarthon
Date:
Thu May 03 20:39:50 2018 +0000
Revision:
0:61544337ff5e
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gunarthon 0:61544337ff5e 1 #include "Crosscorrel.h"
gunarthon 0:61544337ff5e 2 #include "mbed.h"
gunarthon 0:61544337ff5e 3
gunarthon 0:61544337ff5e 4 Crosscorrel::Crosscorrel()
gunarthon 0:61544337ff5e 5 {
gunarthon 0:61544337ff5e 6 this->tau = 50;
gunarthon 0:61544337ff5e 7 }
gunarthon 0:61544337ff5e 8
gunarthon 0:61544337ff5e 9 float Crosscorrel::GetMax(SignalBuf &buf, unsigned chA, unsigned chB)
gunarthon 0:61544337ff5e 10 {
gunarthon 0:61544337ff5e 11 float max = 0;
gunarthon 0:61544337ff5e 12 for(int j = -tau; j <= tau; j++)
gunarthon 0:61544337ff5e 13 {
gunarthon 0:61544337ff5e 14 float correl = 0;
gunarthon 0:61544337ff5e 15
gunarthon 0:61544337ff5e 16 for(unsigned t = 0; t < buf.size(); t++)
gunarthon 0:61544337ff5e 17 {
gunarthon 0:61544337ff5e 18 correl += buf[t][chA] * GetValue(buf, t+j, chB);
gunarthon 0:61544337ff5e 19 }
gunarthon 0:61544337ff5e 20 printf("%i\n", int(correl));
gunarthon 0:61544337ff5e 21 max = correl > max ? correl : max;
gunarthon 0:61544337ff5e 22 }
gunarthon 0:61544337ff5e 23 return max;
gunarthon 0:61544337ff5e 24 }
gunarthon 0:61544337ff5e 25
gunarthon 0:61544337ff5e 26 Crosscorrel::~Crosscorrel()
gunarthon 0:61544337ff5e 27 {
gunarthon 0:61544337ff5e 28
gunarthon 0:61544337ff5e 29 }
gunarthon 0:61544337ff5e 30
gunarthon 0:61544337ff5e 31 float Crosscorrel::GetValue(SignalBuf &buf, int index, unsigned ch)
gunarthon 0:61544337ff5e 32 {
gunarthon 0:61544337ff5e 33 if(index < 0 || index >= buf.size())
gunarthon 0:61544337ff5e 34 return 0;
gunarthon 0:61544337ff5e 35
gunarthon 0:61544337ff5e 36 return buf[index][ch];
gunarthon 0:61544337ff5e 37 }