Abstract
It is not easy to observe the original spectrum information of a moving sound source because of the Doppler effect. Previously, we proposed the method to compensate the Doppler effect to obtain the original spectrum, which is realized by compensating the propagation delay. This method requires the orbit information of target sound source to derive the propagation delay. This paper describes the method to estimate the orbit of moving sound source using sensor array. Proposed method is composed of two parts; the position estimation using a pair of relative propagation delays which are derived from the cross-correlation function, and the orbit estimation by dynamical filtering using the Kalman filter. Simple simulation was carried out to evaluate the performance of the proposed method. The result shows the sufficient accuracy of estimation both of orbit and spectrum.
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