直升机反潜模拟中的吊放声纳系统仿真

吊放声纳系统仿真是直升机反潜作战模拟的关键。分析了吊放声纳发现判决方程、各种搜潜方法的共性特征，在此基础上将探测、发现目标的问题逐步转换成易于求解的数学模型。以单机和单潜作战对抗过程为典型实例，研究了仿真系统功能需求及总体结构。讨论了基于水声资料库、Direct Sound技术、实时3D效果控制，实现音频信号的合成和回放的方法。针对一个合理的数据结构对于有效的数据处理的重要性，将空间矩阵法引入吊声数据处理仿真。运行和使用表明，仿真系统为直升机反潜综合战术模拟训练提供了实用的平台。

Simulation of Dipping Sonar System for Helicopter Anti-submarine

Dipping sonar system simulation is a key problem in helicopter anti-submarine simulation. By discussing the identification equation of submarine searching, and common characteristics of search methods, a simple mathematic searching model for dipping sonar is given. Furthermore, the anti-submarine warfare based on a single-helicopter and a single-submarine is taken as a typical instance, and the architecture and functional requirement of the system are explored. By creating the underwater acoustical signal database and using DirectSound technology, the real-time audio signal is synthesized, and real-time three-dimensional sound effect is implemented. Since a suitable data structure is significant to sonar data processing, the space-matrix algorithm is introduced. So far the simulation system has been put into practice, simulation test shows that the simulator provides a deeper insight into the synthesis tactical training.