Filter Design for Polyphase Filter Banks with Arbitrary Number O F Subband Channels
نویسنده
چکیده
This paper concerns the filter design problem for a recent proposed polyphase filter bank with arbitrary number of subband channels. According to the perfect reconstruction condition for I-D case presented in [ I ] , an analytical formula for the filter design is developed. Compared with direct numerical design algorithms. this analytical formula allows one to design the required low-pass FIR prototype filter with much less computational complexity and obtain better filter bank performance. A design example is given for illustration.
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