水中目标联合压差及时延的二元阵定位方法

Underwater Target Dual-sound Positioning Method Combined Pressure Difference and Time Delay

针对引信在实现近距快速定位时声传感器阵列体积大的问题,提出了联合压差和时延的二元阵定位方法。二元阵定位方法采用分帧处理和广义相关法将声压差和声时差模型相结合,确定平面目标位置,随着弹丸的转动,也能判定垂直平分线上的目标位置。试验结果表明,该方法在较低混响下可获得较好的定位结果,在满足引信近距探测高灵敏度、快速响应要求基础上,有效减小了阵列体积。

Aimimg at the problem of big volume of the sound sensor array of fuze for rapid target positioning at short range,the dual-sound position mehtod of fuze by joint the sound pressure signal with the sound time difference signal was put forward.Dual-sound position mehtod achieved the target plane position by sub-frame processing and generalized correlation method joint the sound pressure signal with the sound time difference signal.With the rotation of the projectile,it also could determine the target position of the perpendicular bisector.Test results showed that the algorithm under the low reverberation achieved a better position effect,and effectively reduced the sensor array volume with the high sensitivity and fast response requirements of fuze short range detecting.