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A low-complexity multiplierless half-band recursive digital filter design

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1 Author(s)
Samueli, H. ; Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA

A low-complexity multiplierless design of a half-band recursive digital filter is presented. The filter structure is realized as a bireciprocal lattice wave digital filter. The filter coefficients are represented in a canonic signed-digit code with only two nonzero digits, and thus each filter coefficient can be implemented with only a single adder or subtracter. A fifth-order elliptic filter section is presented which requires only nine adders and five delays. Thus, a cascade of three or four of these fifth-order building blocks could be implemented on a single VLSI chip to obtain a high-performance half-band filter

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Acoustics, Speech and Signal Processing, IEEE Transactions on  (Volume:37 ,  Issue: 3 )