基于爆炸声源的水下目标定位算法

摘要

It is difficult to realize effective detection of distant targets due to the limited range of the active sonar caused by the attenuation of the sound signal during underwater transmission. Passive sonar detection has the disadvantage that it can only obtain the target position and can not obtain the target distance which seriously affects the positioning of the underwater target.The underwater target localization algorithm based on the explosive sound source uses the explosive sound as the sound source to provide the target echo signal for the passive sonar,such as the position of the explosive sound source, the target echo azimuth and the echo time interval. Target location information can be calculated by the triangulation method. The algo-rithm has high positioning accuracy and can provide accurate target position information for the operations of long-range anti-submarine weapons in anti-submarine weapon systems.%由于声信号在水下传播过程中的衰减,导致主动声呐的作用距离有限,难以实现对远距离目标的有效探测,而被动声呐探测又存在只能获取目标方位难以获取目标距离的不足,严重影响了水下目标的定位效果.基于爆炸声源的水下目标定位算法通过使用爆炸声波作为声源,为被动声呐提供目标回波信号,通过获取声源爆炸位置、回波时间间隔及目标回波方位,利用三角定位法计算目标的位置信息.该算法定位精度高,可为反潜武器系统中远程反潜武器的作战提供精确的目标位置信息.