确定信号情况下矢量水听器检测及估计性能研究

在某些场合,例如水下定位、编码通信,信号具有确知脉冲信号特性,声源相对于接收器的方位,可以采用矢量水听器处理来获得。对于确知脉冲信号,本文证明了在各向同性噪声场下,参考声压和振速的相关处理器的方向是声源方位的最大似然方位估计,以及方位估计的克拉美-罗界CRB(Cramer-Rao Bound)。给出了计算机的仿真结果。

Research on Deterministic Signal Estimation of Acoustic Vector Sensor

In some situation, such as underwater localization and underwater encoding communication, the signal has the feature of deterministic signals. The direction of the sound source relative to the receiver still can be obtained by acoustic vector sensor processing. For the deterministic signal in the field of isotropy noise, it is proved that the direction carried by using the correlator between reference copy pressure and particle velocity, is the maximum likelihood direction estimation as well as the CRB of the azimuth estimation is discussed here The simulation results are presented here.