Simultaneous approximation for IIR Digital Filters with Log Magnitude and Phase Response
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概要
- 論文の詳細を見る
In this paper, we propose a new design algorithm for nearly linear phase IIR digital filters with prescribed log magnitude response. The error function used here is the sum of the weighted log magnitude-squared error and phase-squared error, and so it is possible to control log magnitude and phase response directly. The gradient vector of the proposed error function is easily calculated as the closed form solution because of its nature, in which the real and imaginary part of the logarithm of a complex transfer transfer function corresponds to the log magnitude and phase response, respectively. This algorithm is simple and converges quickly. Finally, we show the validity of the proposed algorithm with some examples.
- 社団法人電子情報通信学会の論文
- 1996-11-25
著者
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Takahashi S
The Faculty Of Electronics And Electrical Engineering Keio University
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Okuda Masahiro
Department Of Physics And Electronics College Of Osaka Prefecture University
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Okuda Masahiro
Department Of Physics And Electronics College Of Engineering Osaka Prefecture University
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Okuda Masahiro
京都大学医学部附属病院 薬剤部
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Ohmukai M
Department Of Electrical And Computer Engineering Akashi National College Of Technology
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Okuda M
The Faculty Of Environmental Engineering The University Of Kitakyushu
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Okuda Masahiro
Department Of Physics And Electronics University Of Osaka Prefecture
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Okuda Masahiro
The Faculty Of Environmental Engineering The University Of Kitakyushu
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Takahashi Shin-ichi
The Faculty Of Electronics And Electrical Engineering Keio University
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Okuda M
Department Of Physics And Electronics University Of Osaka Prefecture
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Ohmukai Masato
Department Of Electrical And Computer Engineering Akashi National College Of Technology
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Okuda M
Department Of Electrical And Computer Engineering Akashi National College Of Technology
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IKEHARA Masaaki
the Faculty of Environmental Engineering, The University of Kitakyushu
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Ikehara M
The Faculty Of Environmental Engineering The University Of Kitakyushu
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