水中动态爆点纯方位定位有效测量距离分析

Analysis on Effective Measuring Distance of Bearings Only Positioning Methods to Locate Dynamic Detonation Point Underwater

为解决传统水中动态爆点双曲线定位技术的成本大、测点精度低等问题,提出了利用纯方位测量技术实现水下动态爆点的实时定位方法;介绍了基于矢量水听器技术的纯方位定位原理,根据矢量水听器的特点分析了接收信号信噪比与传播距离的关系和爆炸声在不同传播距离上的声传播损失、接收点的信号声压级,对有效测量距离进行了估算。

In order to solve the questions such as big costs, less accurate of measure point of the traditional hyperbola locating technology and so on, we presented a method of bearings-only location to locate dynamic detonation point. And we recommended the technology of bearings-only location based on vector hydrophones. According to the characteristics of vector hydrophone, the relation between SNR of receipt signal and the signal propagation distance was analyzed, the acoustic signal transmission loss and acoustic signal pressure level of the detonation in the different propagation distance were analyzed and the effective measuring distance was estimated.