DocumentCode :
3325825
Title :
Various type digital filters for an arbitrary sound environmental system with quantized observation mechanism and its application
Author :
Uchino, E ; Ohta, M. ; Hatakeyama, K.
Author_Institution :
Fac. of Comput. Sci. & Syst. Eng., Kyushu Inst. of Technol., Iizuka, Japan
fYear :
1991
fDate :
28 Oct-1 Nov 1991
Firstpage :
2205
Abstract :
The authors describe various state estimation methods of a quantized sound environmental system. The elimination of not only the usual background noise but also the quantization noise owing to digital observation is discussed. The methods include the traditional Kalman filter as a special case when Gaussian distribution is employed and where there is no level quantization. The level quantization mechanism is discussed from the statistical viewpoint and from the deterministic viewpoint. The methods presented can estimate any kind of statistic, including the lower and the higher order moments from the level quantized observation data. Not only the linear correlation but also the higher order nonlinear correlations between a state variable and a quantized observation are hierarchically used in the estimation algorithm. The quantized observation data are used in the linear and nonlinear forms. The effectiveness of the proposed methods was confirmed experimentally by applications to room acoustics data
Keywords :
State estimation; acoustic filters; acoustic signal processing; architectural acoustics; digital filters; noise abatement; state estimation; Gaussian distribution; Kalman filter; digital filters; level quantization; quantization noise; quantized observation mechanism; sound environmental system; state estimation methods; Acoustic applications; Acoustic noise; Background noise; Digital filters; Gaussian distribution; Higher order statistics; Quantization; State estimation; Statistical distributions; Working environment noise;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-87942-688-8
Type :
conf
DOI :
10.1109/IECON.1991.239000
Filename :
239000
Link To Document :
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