双基地声纳海底界面侧向散射分析与仿真

Analysis and Simulation of Bistatic Sonar Seafloor Interface Side E-Scattering

海底界面侧向散射分析是双基地声纳探测性能的关键技术。研究分析了双基地条件下,海底界面散射与双基地几何配置之间的相互关系。根据实际配置的情形,提出了一种双基地声纳海底界面侧向散射面积的计算方法,得到了解析表达式。通过仿真实验,得到了双基地海底界面侧向散射面积与观测时间、接收指向、束宽和脉冲宽度等因素的变化规律,表明该算法是可行的,为双基地声纳系统的性能评估和合理配置、使用提供了有效的模型。

Analysis of seafloor interface side-scattering is the key technology of improving the detection performance of bistatic sonar. The relationship of seafloor interface scattering and bistatic geometry configuration is studied. According to the practical situation, a bistatic sonar seafloor interface side-scattering area algorithm is presented and the analytic expression is developed. Through the simulation experiments, the rule for seafloor interface side-scattering area with observation time, receiving direction, receiving beam width and pulse width is found. The results show that the algorithm is feasible and can offer effective model for bistatic sonar performance evaluation and reasonable configuration.