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Away from specifics of your case a complex correlator is based on sum of products just like complex FIR.
every real output sample = sum of (Re1.Re2 - Im1.Im2) for all 16 elements
every imag output sample = sum of (Re1.Im2 + R2I.m1) for all 16 elements
where Re1 is real input and Im1 is imag input, Re2 is real coeff, Im2 is imag coeff
since your coeffs are zeros or ones you don't need scaling but 0 means zero result and ones mean pass input[/QUOTE
hey thank you for your reply one confusion as when we do cross correlation i need a fixed input too with which correlation will be done of the coefficients i read papers and it suggests as OFDM is my application i will get that input from there is it?
and i m willing to design a multiplierless correlator using shift and add how could that be done. i am planning on designing a correlator using binary bits which gives better performance and computation and uses less area. so i am planning to do it by correlating two binary inputs and getting the putput using shift and add do you have any idea how should i proceed with it
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