A Novel Wavelet-Based Notch Filter with Controlled Null Width(Digital Signal Processing)
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概要
- 論文の詳細を見る
This paper presents a wavelet-based approach for the design of the finite impulse response (FIR) notch filter with controlled null width. The M-band P-regular wavelet filters are employed to constitute the null space of the derivative constraint matrix. Taking advantage of the vanishing moment property of the wavelet filters, the proposed method controls the null width of the notch filter by adjusting the regularity of the employed wavelet filters. Besides, the selection of large number of bands of the wavelet filters can effectively reduce the minimum mean square error and thus improve the performance of the notch filter. Computer simulations show that, in addition to possessing lower computational complexity, the proposed reduced-rank method has similar frequency response compared to those of the full-rank-based techniques.
- 社団法人電子情報通信学会の論文
- 2006-04-01
著者
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Wang Yung‐yi
Chang‐gung Univ. Tao‐yuan Twn
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WANG Yung-Yi
Department of Electrical Engineering, Chang-Gung University
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LU Ying
Department of Computer and Communications Engineering, St. John's University
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LEE Liang-Cheng
Department of Computer and Communications Engineering, St. John's University
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Lu Ying
St. John's Univ. Taipei Twn
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Lu Ying
Department Of Computer And Communications Engineering St. John's University
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Wang Yung‐yi
St. John's Univ. Taipei Twn
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Wang Yung-yi
Department Of Electrical Engineering Chang Gung University
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Wang Yung-yi
Department Of Computer And Communication Engineering St. John's University
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Lee Liang-cheng
Department Of Computer And Communications Engineering St. John's University
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