Constraint two-path polyphase IIR filter design using downhill simplex algorithm
نویسندگان
چکیده
The paper addresses tlie design of tlie polyphase IIR filters based on the “’-order single-coefficient allpass sub-filters in the constraint coefficient space using the Constraint Dowdiill Simplex Algorithm. Incorporating the bit-flipping algorithm into its core engine allowed the optitilisation routine to converge to better target designs without affecting tlie Iiigli speed of tlie original algoritlm. Establishing the boundaries of tlie search space required by the Downhill Simplex Algorithm for the twopath polyphase IIR filter is also presented.
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