In our living environment, there are many environmental noise sources that affect our daily life such as traffic noise, factory engines, construction machinery and others. In order to reduce the moving environmental noises, it is important to estimate the arrival direction of the environmental noise. This paper describes the estimated results of direction of arrival sound by a moving sound source with a constant velocity along a straight line. The estimated error between true and estimated of arrival direction is within 4.6[deg], and estimated error for velocity is 7.90[m/sec] by the MUSIC method.
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