Arata KAWAMURA

Design of an IIR Comb Flter with Variable Bandwidths
Yosuke SUGIURA  Arata KAWAMURA  Youji IIGUNI 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2011/01/01
Vol. J94-A  No. 1  pp. 41-43
Type of Manuscript: LETTER
Category: 
Keyword: 
comb filter,  harmonic signals,  IIR,  valiavle bandwidth, 
  Summary |  Full Text(in Japanese):PDF (259.9KB)
Zero Phase Signal Analysis and Its Application to Noise Reduction
Yuki KAMAMORI  Arata KAWAMURA  Youji IIGUNI 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2010/10/01
Vol. J93-A  No. 10  pp. 658-666
Type of Manuscript: PAPER
Category: 
Keyword: 
zero phase signal,  speech enhancement,  noise reduction,  white noise,  impulse noise, 
  Summary |  Full Text(in Japanese):PDF (738.7KB)
A Speech Enhancement Using Lattice Filter with Correlation Control Algorithm
Arata KAWAMURA  Takashi KATAHAMA 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2009/02/01
Vol. J92-A  No. 2  pp. 84-93
Type of Manuscript: PAPER
Category: 
Keyword: 
noise reduction,  lattice filter,  adaptive algorithm,  auto-correlation,  DSP, 
  Summary |  Full Text(in Japanese):PDF (779KB)
An Adaptive Howling Canceller Based on Distance Measurement
Akira SOGAMI  Arata KAWAMURA  Youji IIGUNI 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2008/10/01
Vol. J91-A  No. 10  pp. 939-948
Type of Manuscript: PAPER
Category: 
Keyword: 
howling,  arrival time measurement,  notch filter,  real time processing, 
  Summary |  Full Text(in Japanese):PDF (654.9KB)