Improvement of the Accuracy in Attenuation Constant Estimation Using the Cross-Spectral Technique
Summary :
This paper proposes a method of improving the accuracy of the attenuation constant estimate obtained by using the cross-spectral technique. In the cross-spectral technique, the envelope of the estimated impulse response is deformed due to the use of a time window. As a result, the estimated impulse response decays more rapidly than the real impulse response does, and the attenuation constant obtained by the estimated impulse response becomes larger than the real value. This paper first describes how the attenuation constant changes in the process of impulse response estimation. Next, we propose a method of improving the accuracy of the estimation. The effect of the proposed method is confirmed by computer simulation.
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- IEICE TRANSACTIONS on Fundamentals Vol.E82-A No.4 pp.626-633
- Publication Date
- 1999/04/25
- Publicized
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- Special Section PAPER (Special Section on Advanced Signal Processing Techniques for Analysis of Acoustical and Vibrational Signals)
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Manabu FUKUSHIMA, Takatoshi OKUNO, Hirofumi YANAGAWA, Ken'iti KIDO, "Improvement of the Accuracy in Attenuation Constant Estimation Using the Cross-Spectral Technique" in IEICE TRANSACTIONS on Fundamentals,
vol. E82-A, no. 4, pp. 626-633, April 1999, doi: .
Abstract: This paper proposes a method of improving the accuracy of the attenuation constant estimate obtained by using the cross-spectral technique. In the cross-spectral technique, the envelope of the estimated impulse response is deformed due to the use of a time window. As a result, the estimated impulse response decays more rapidly than the real impulse response does, and the attenuation constant obtained by the estimated impulse response becomes larger than the real value. This paper first describes how the attenuation constant changes in the process of impulse response estimation. Next, we propose a method of improving the accuracy of the estimation. The effect of the proposed method is confirmed by computer simulation.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e82-a_4_626/_p
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@ARTICLE{e82-a_4_626,
author={Manabu FUKUSHIMA, Takatoshi OKUNO, Hirofumi YANAGAWA, Ken'iti KIDO, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Improvement of the Accuracy in Attenuation Constant Estimation Using the Cross-Spectral Technique},
year={1999},
volume={E82-A},
number={4},
pages={626-633},
abstract={This paper proposes a method of improving the accuracy of the attenuation constant estimate obtained by using the cross-spectral technique. In the cross-spectral technique, the envelope of the estimated impulse response is deformed due to the use of a time window. As a result, the estimated impulse response decays more rapidly than the real impulse response does, and the attenuation constant obtained by the estimated impulse response becomes larger than the real value. This paper first describes how the attenuation constant changes in the process of impulse response estimation. Next, we propose a method of improving the accuracy of the estimation. The effect of the proposed method is confirmed by computer simulation.},
keywords={},
doi={},
ISSN={},
month={April},}
Copy
TY - JOUR
TI - Improvement of the Accuracy in Attenuation Constant Estimation Using the Cross-Spectral Technique
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 626
EP - 633
AU - Manabu FUKUSHIMA
AU - Takatoshi OKUNO
AU - Hirofumi YANAGAWA
AU - Ken'iti KIDO
PY - 1999
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E82-A
IS - 4
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - April 1999
AB - This paper proposes a method of improving the accuracy of the attenuation constant estimate obtained by using the cross-spectral technique. In the cross-spectral technique, the envelope of the estimated impulse response is deformed due to the use of a time window. As a result, the estimated impulse response decays more rapidly than the real impulse response does, and the attenuation constant obtained by the estimated impulse response becomes larger than the real value. This paper first describes how the attenuation constant changes in the process of impulse response estimation. Next, we propose a method of improving the accuracy of the estimation. The effect of the proposed method is confirmed by computer simulation.
ER -
English
