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Published February 1, 1990 | public
Journal Article Open

On arbitrary-level IIR and FIR filters


A recently published method for designing IIR (infinite-impulse-response) digital filters with multilevel magnitude responses is reinterpreted from a different viewpoint. On the basis of this interpretation, techniques for extending these results to the case of finite-impulse-response (FIR) filters are developed. An advantage of the authors' method is that, when the arbitrary-level filter is implemented, its power-complementary filter, which may be required in specific applications, is obtained simultaneously. Also, by means of a tuning factor (a parameter of the scaling matrix), it is possible to generate a whole family of arbitrary-level filters.

Additional Information

© Copyright 1990 IEEE. Reprinted with permission. Manuscript received April 11, 1988; revised April 26, 1989. This work was supported in part by the National Science Foundation under Grant DCI 855-2579 and under Grant DCI 850-8017 with matching funds from GEC and Pacific Bell, and in part by Caltech's programs in Advanced Technology grant sponsored by Aerojet General, General Motors, GTE, and TRW, and in part by the National Science Foundation under Grant MIP 8604456. This paper was recommended by Associate Editor Y. C. Jenq.


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