Computationally Efficient MultiplierFree Fir Filter Design
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| Format: | Artículo científico |
| Sprache: | en |
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Instituto Politécnico Nacional
2007
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| _version_ | 1876455093758328832 |
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| author | Sanjit K. Mitra |
| author_facet | Sanjit K. Mitra |
| contents | Computationally Efficient MultiplierFree Fir Filter Design Sanjit K. Mitra Gordana Jovanovic Dolecek Computación rounding FIR filter multiplier sharpening free filter This paper presents a very simple multiplier-free finite impulse response (FIR) lowpass filter design procedure. It involves approximation of an equiripple FIR by rounding operation and application of the sharpening technique. In that way the overall filter is based on combining one simple filter with integer coefficients. The parameters of the design are the rounding constant and the parameters of the sharpening polynomials such as the order of tangencies m and l. Our analysis indicates that utilizing this approach the required number of total nonzero bits becomes quite low and less than in the minimum number of signed powers-of-two (MNSPT) design. The cost is the increase of the total numbers of sums and the delays. 2007 artículo científico 1405-5546 https://www.redalyc.org/articulo.oa?id=61509804 en http://www.redalyc.org/revista.oa?id=615 Computación y Sistemas application/pdf Instituto Politécnico Nacional Computación y Sistemas (México) Num.3 Vol.10 |
| format | Artículo científico |
| id | redalyc_61509804 |
| institution | Redalyc |
| language | en |
| publishDate | 2007 |
| publisher | Instituto Politécnico Nacional |
| spellingShingle | Computationally Efficient MultiplierFree Fir Filter Design Sanjit K. Mitra Computación rounding FIR filter multiplier sharpening free filter Computationally Efficient MultiplierFree Fir Filter Design Sanjit K. Mitra Gordana Jovanovic Dolecek Computación rounding FIR filter multiplier sharpening free filter This paper presents a very simple multiplier-free finite impulse response (FIR) lowpass filter design procedure. It involves approximation of an equiripple FIR by rounding operation and application of the sharpening technique. In that way the overall filter is based on combining one simple filter with integer coefficients. The parameters of the design are the rounding constant and the parameters of the sharpening polynomials such as the order of tangencies m and l. Our analysis indicates that utilizing this approach the required number of total nonzero bits becomes quite low and less than in the minimum number of signed powers-of-two (MNSPT) design. The cost is the increase of the total numbers of sums and the delays. 2007 artículo científico 1405-5546 https://www.redalyc.org/articulo.oa?id=61509804 en http://www.redalyc.org/revista.oa?id=615 Computación y Sistemas application/pdf Instituto Politécnico Nacional Computación y Sistemas (México) Num.3 Vol.10 |
| title | Computationally Efficient MultiplierFree Fir Filter Design |
| topic | Computación rounding FIR filter multiplier sharpening free filter |
| url | https://www.redalyc.org/articulo.oa?id=61509804 |