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[SOLVED] How to normalize signal for correlation

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karanbanthia

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Hello all,
I am using dsPIC30f4011 for signal processing and programming the same using MPLAB C30 compiler. I am scanning two signals simultaneously using ADC in signed fractional format. When I use VectorCorrelate to find cross-correlation between them, it gives me a Math Error since some of the result values are greater than 1. After searching a remedy for the same, I came across a solution suggesting to find normalized cross-correlation which takes care of this saturation problem but I am not sure how to do this. Can anyone please guide me to calculate normalized cross-correlation?

Thanks in advance.
 

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