Minimization of Output Errors of FIR Digital Filters by Multiple Decompositions of Signal Word
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概要
- 論文の詳細を見る
FIR digital filters composed of parallel multiple subfilters are proposed. A binary expression of an input signal is decomposed into multiple shorter words, which drive the subfilters having different length. The output error is evaluated by mean squared and maximum spectra. A fast algorirhm is also proposed to determine optimal filter lengths and coefficients of subfilters. Many examples confirm that the proposed filters generate smaller output errors than conventional filters under the condition of specified number of multiplications and additions in filter operations. Further, multiplier and adder structures (MAS) to perform the operations of the proposed filters are also presented. The number of gates used in the proposed MAS and its critical path are estimated. The effectiveness of the proposed MAS is confirmed.
- 社団法人電子情報通信学会の論文
- 1998-03-25
著者
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藤井 信男
九州大学システム情報科学研究院電気電子システム工学部門
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Nishihara A
Tokyo Inst. Technol. Tokyo Jpn
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YAGYU Mitsuhiko
the Faculty of Engineering, Tokyo Institute of Technology
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NISHIHARA Akinori
the Center for Research and Development of Educational Technology, Tokyo Institute of Technology
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FUJII Nobuo
the Faculty of Engineering, Tokyo Institute of Technology
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Yagyu M
Texas Instruments Japan Ltd. Tokyo Jpn
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Nishihara Akinori
The Center For Research And Development Of Educational Technology Tokyo Institute Of Technology
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Fujii Nobuo
The Faculty Of Engineering Tokyo Institute Of Technology
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