Efficient method based on Z-Transform techniques for coefficient calculation of sinc^N FIR filters
Jean Le Bihan · 2008
Sinc^N FIR filters, constituted of a cascade of N sinc filters, each of length M, are encountered in digital signal processing applications. Using Z-transform techniques permits to derive straightforward recurrence relations for fast computation of the impulse response. A simple general expression, valid for all the filter coefficients, can also be obtained.