CALIBRATION OF CHANNEL MISMATCHING AND SENSOR COUPLING IN DIRECTION AND FREQUENCY ESTIMATIONS
多信号源方向和频率估计中通道失配和阵元互耦的一次性补偿

In this paper, the mechanism of the performance degration due to channel mismatching and sensor coupling in azimuthms and frequencies is analyzed. A new comprehensive calibration method that can compensate error by a known sound source is proposed. The method is easy to be implemented and the results of acoustic experiments in anechoic room show that offered method is effective.