单舰双声呐对鱼雷交叉定位误差分析

Error Analysis of Torpedo Cross-location for Single-vessel Dual Sonar

摘要:

目前鱼雷武器仍是水面舰艇在未来战场上的主要威胁之一，而鱼雷位置信息的获取对鱼雷防御具有至关重要的作用。随着声呐探测系统性能不断提升，舰壳和拖曳式声呐也可在较远距离上探测到来袭鱼雷方位信息，因此基于双声呐测向信息可以对鱼雷位置进行交叉定位。通过建立典型测量误差下的误差空间分布模型，仿真分析了常规交叉定位算法目标定位误差空间分布情况。针对测向方位这一主要定位误差影响因素，提出了基于测向方位滤波的交叉定位算法。动态场景下的仿真结果表明：该算法可以有效提高鱼雷目标定位精度。该研究可为利用单舰双声呐系统对鱼雷目标进行定位提供依据。

Abstract:

Torpedoes are one of the main threats to vessels in the future battlefield，and the acquisition of torpedo position information plays an important role in torpedo defense. With the improvement of sonar detection system，the hull-mounted and towed sonar can also detect the direction of the coming torpedo at a long distance. Therefore，the torpedo can be cross located based on the direction information measured by dual sonar. In this paper， we simulate and analyze the error spatial distribution of the cross-location algorithm by establishing the error spatial distribution model under typical measurement errors. Aiming at the main influence factor of DF azimuth，a cross-location algorithm based on DF azimuth filtering is proposed. Simulation results in dynamic scenes show that the algorithm can effectively improve the accuracy of torpedo positioning. This study can provide a basis for torpedo cross-location for single-vessel dual sonar.