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the filter supossed to be a very narrow high prefomence band pass (based on a paper), that's why it has this huge amount of coefficients (as dave said).
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A narrow bandpass can be efficiently implemented using a CIC filter plus a FIR filter, or using Nyquist filters (of which a half-band filter is one type).
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it is a type I fir so it is symmmetrical with and odd length.
the writers of the paper implement the filter with a TI 8 or 32 core DSP, and we wondered if its possible in a FPGA as is.
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Post a link to the paper, or at least a reference if its something like an IEEE paper that you cannot post.
Cheers,
Dave
Honored Contributor
