Estimation of velocity of a moving object by the MUSIC method.

摘要

In our living environment, there are many noise sources that affect our daily life such as traffic noise, factory engines, construction machinery. However the prevention methods of environment noises are studied, there are not effective methods for preventing the traffic noises. These results account for the difficulties to estimate precisely the propagation of the traffic noise. This paper describes the estimated results of direction of arrival sound wave generated by a moving sound source with a constant velocity along a straight line. The error between measured and estimated angle of arrival direction is within 7.6 [deg] by the MUSIC method. In addition, the estimated velocity calculated by the estimated results of DOA is 8.31 [m/sec] which differs from the measured velocity 7.90 by 0.41 [m/sec].