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  • Do you want to correlate two real-time signals or a real-time signal with a predefined pattern? How large (in number of samples) is the window over which you want to integrate? Commented May 12, 2015 at 10:18
  • signal collected and than cross corr will work. length of signal is 90. Commented May 12, 2015 at 11:17
  • Could not understand your sentence. Could you please update the question with information about the two signals you want to correlate? Are they known at compile time? Have they to be processed sample by sample during acquisition? Commented May 12, 2015 at 11:49
  • I wrote a sparse cross correlator that works with a digital signal sampled on timer values. It was running on a very small microcontroller. If you give us more information about what signal you are correlating I would be happy to post it here Commented May 12, 2015 at 11:52
  • There is an ultrasonic sensor.and a servo that turns from 45 to 135 degree and measures distance from 4-300 cm. now i collect data in an array which contains distances with respect to angle.system makes several measurement like this and than program finds corelation between new and old arrays. Commented May 12, 2015 at 15:21