鱼雷水声同步定位系统抗定位距离模糊算法及仿真

实时准确定位是对鱼雷水声定位系统的基本要求，研究了一种解决鱼雷水声同步定位系统定位距离模糊算法，分析了定位距离模糊的原因，提出了基于水平等距线阵同步定位、相关波门修正时延差等技术的快速定位方法，并进行了仿真验证。仿真结果表明，该方法具有不明显增加硬件成本、不穷举全部模糊解和无需先验位置信息等优点，可以为设计中远程鱼雷定位系统、短基线或超短基线水声定位系统消除定位距离模糊、锁定正确航迹提供借鉴。

Anti Positioning Range Ambiguity Algorithm with Simulation for Underwater Synchronous Acoustic Positioning System of Torpedo

The reason why positioning range ambiguity problem is created in an underwater synchronous acoustic posi- tioning system of torpedo is analyzed, and an anti positioning range ambiguity algorithm is proposed to completely solve this problem. Accordingly, a quick positioning method is proposed for the underwater synchronous acoustic positioning system of torpedo based on the horizontal equidistant line array technology and the correlative wave gate technology for correcting time-delay difference. Simulation result shows that this method has such advantages as less addition in hard- ware cost, non-exhaustion of all fuzzy solutions, and non-prior position information. It may be applied to eliminating range ambiguity and locking tracked target in design of medium- and long-range positioning system of torpedo, and to design of short/ultra-short baseline underwater acoustic positioning system.