水下爆炸信号的定位研究  

Research of Localization Based on Underwater Explosion Signal

作　　者：王晓瑶[1,2] 张国军[1,2] 关凌纲[1] 王盼盼[1] 张文栋[1,2] 

机构地区：[1]中北大学仪器科学与动态测试教育部重点实验室,山西太原030051 [2]电子测试技术重点实验室,山西太原030051

出　　处：《海洋技术》2011年第3期72-76,共5页Ocean Technology

基　　金：国际科技合作项目"基于纳机电矢量水听器的声纳系统合作研究"(2010DFB10480)资助

摘　　要：被动声纳中,目标定位的测定只能利用目标声源发出的信号或噪声,爆炸声源与常用的电声式脉冲声纳发射器比较起来,具有某些明显的优点,可代替发射换能器来实现距离和方位的测定。针对水下爆炸声源,采用三元标量阵进行研究,通过确定信号到达各个阵元的时延信息来测定其目标方位和距离,并利用内插方法提高定位精度。实验结果表明,不同位置处爆炸信号的测向和测距误差小、精度高,方位估计基本正确,从而验证了被动声纳中水下爆炸信号作为声源的可行性,及三元阵时延测距的准确性。Noise or signal radiated from target is used to detect the target distance and azimuth in the passive sonar. The explosive sound source has some obvious advantages compared to pulse sonar transmitters, which can detect the target distance and azimuth instead of transmitter transducer. The three-scalar array is used to research on underwater explosion by obtaining the time delay information to achieve the estimation of distance and azimuth. The interpolation method is used to improve the precision of time delay estimation. The experiment results have verified the effectiveness of underwater explosion as a sound source in passive sonar and the accuracy of time delay estimation. Meanwhile, the explosion signals at different locations have small error of localization, high precision and tight direction estimation.

关 键 词：水下爆炸信号 互相关时延估计 被动定位 

分 类 号：TB566[交通运输工程—水声工程]