Published September 1, 1985
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Journal Article
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Optimal design of linear phase FIR digital filters with very flat passbands and equiripple stopbands
- Creators
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Vaidyanathan, P. P.
Chicago
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Abstract
A new technique is presented for the design of digital FIR filters, with a prescribed degree of flatness in the passband, and a prescribed (equiripple) attenuation in the stopband. The design is based entirely on an appropriate use of the well-known Reméz-exchange algorithm for the design of weighted Chebyshev FIR filters. The extreme versatility of this algorithm is combined with certain "maximally flat" FIR filter building blocks, in order to generate a wide family of filters. The design technique directly leads to structures that have low passband sensitivity properties.
Additional Information
© Copyright 1985 IEEE. Reprinted with permission Manuscript received August 9, 1984; revised December 2, 1984. This work was supported by the National Science Foundation under Grant ECS 84-04245. The author wishes to thank Dr. J. F. Kaiser, Bell Communications Research, Inc., for his encouragement of the ideas contained in this paper. Encouraging comments by Prof. Y. Nuevo, Tampere University of Technology, are also gratefully acknowledged. The modifications of the McClellan-Parks programs for Method 2 design were incorporated by J. Trosino, first-year graduate student, Caltech, Pasadena, CA.Files
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