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http://dx.doi.org/10.5050/KSNVN.2005.15.10.1131

Application of Minimum Phase Condition to the Acoustic Reflection Coefficient Measurement  

Heo, Jun-Hyeok ((주)LG전자)
Kim, Deok-Ki (영남대학교 기계공학부)
Lim, Byoung-Duk (영남대학교 기계공학부)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.15, no.10, 2005 , pp. 1131-1136 More about this Journal
Abstract
For the accurate measurement of acoustic properties of a surface, efforts have been made to reduce errors caused by external disturbance. If the reflection coefficient is considered as a transfer function between reflected wane and incident wave, the causality is required between them and the reflection coefficient should be of minimum phase. In this thesis, the minimum phase condition is applied to measure correct reflection coefficient. The reflection coefficient is approximated as a rational function In the Z domain by minimizing the sum square error. Then the minimum phase reflection coefficient is reconstructed using the distribution of poles and zeros of the reflection coefficient model.
Keywords
Minimum Phase Condition; Reflection Coefficient; Causality; Acoustic Measurement;
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1 Seybert, A. F. and Ross, D. F., 1977, 'Experimental Determination of Acoustic Properties Using a Two-microphone Random-excitation Technique', J. Acoust. Soc. Am., 61, pp. 1362-1370   DOI
2 Oppenheim, A. V. and Schafer, R. W., 1999, Discrete-time Signal Processing, Prentice Hall, New Jersey, Chapter 5
3 Chung, J. Y. and Blaser, D. A., 1980, 'Transfer Function Method of Measuring in Duct Acoustic Properties. I. Theory, II. Experiment', J. Acoustic. Soc. Am., 68, pp. 907-921   DOI   ScienceOn
4 McDaniel, J. G., 1999, 'Applications of the Causality Condition to One-dimensional Acoustic Reflection Problems,' J. Acoust. Soc. Am. 105, pp. 2710-2716   DOI   ScienceOn
5 Seybert, A. F. and Soenarko, B., 1981, 'Error Analysis of Spectral Estimates with Application to the Measurement of Acoustic Parameters Using Random Sound Fields in Ducts', J. Acoustic. Soc. Am., 69, pp. 1190-1199   DOI   ScienceOn
6 강성우, 김양한, 1992, '두개의 음향탐촉자를 이용한 소음기의 투과손실 측정과 오차해석', 한국소음진동공학회논문집, 제 2 권, 제 3 호, pp. 181-192
7 ASTM C1050-98, 1998, 'Standard Test Method for Impedance and Absorption of Acoustical Materials Using a Tube, Two Microphones, and a Digital Frequency Analysis Method' (American Society for Testing and Materials, Philadelphia)
8 McDaniel, J. G. and Clarke, C. L., 2001, 'Interpretation and Identification of Minimum Phase Reflection Coefficients,' J. Acoust. Soc. Am. 110, pp. 3003-3010   DOI   ScienceOn