A direct search procedure for designing finite duration impulse response filters
Ben Gold, K.L. Jordan · IEEE Transactions on Audio and Electroacoustics · 1969
We introduce an approach to the design of low-pass (and, by extension, bandpass) digital filters containing only zeros. This approach is that of directly searching for transition values of the sampled frequency response function to reduce the sidelobe level of the response. It is shown that the problem is a linear program and a search algorithm is derived which makes it easier to obtain the experimental results.