Copyright © 2001 Elsevier Science B.V. All rights reserved.
An improved frequency response masking approach for designing sharp FIR filters
Received 27 September 2000;
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Abstract
A new method to reduce the number of multipliers in the design of sharp FIR filters by frequency-response masking technique is presented. The success of the proposed method is based on a modified frequency-response masking approach where one of the subfilters in the approach is implemented by interpolated finite-impulse response (IFIR) technique. We have shown by example that the proposed method yields additional savings of 21% in the number of multipliers compared to the original frequency-response masking approach.
Author Keywords: FIR filters; Digital filters







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