多目标背景下的被动声测向技术研究

目的 研究适用于多目标背景下反直升机雷的声引信系统的基阵设计。方法 比较分析和种声探测系统的设计方案，分析对窄带，宽带信号的基阵指向性，分析直升机目标的声特性，结果 提出了适用于多目标背景的基阵结构和基于多波束预形成算法的目标跟踪自力更生，结论了仿真计算验证了该结构设计和算法的有效性。

Passive Acoustic Direction Finding UnderMultiple Targets Conditions

Aim To research acoustic set design of as a fuse system for the anti- helicopter mine adaptable to multiple targets conditions. Methods Several methods for the passive acoustic set design were compared. Set directivities to narrow band and wide band signals were analyzed. Also the acoustic property of helicopter was discussed. Results The set structure adaptable to the multiple target conditions and a target tracking strategy based on the multi- beam- preforming algorithm were proposed. Conclusion Simulation results have proved that the set design and the algorithm are quite available.