【摘要】 以鱼雷声自导技术研究与性能评估为目的,建立了基于DSP的阵元信号级鱼雷声自导仿真系统。针对鱼雷声自导系统信号处理中数据量大的特点,采用具有多DSP结构的并行处理系统作为硬件平台,满足实时性要求。介绍了仿真系统的总体结构和仿真设备的基本功能,给出了多DSP并行处理系统的硬件结构,解决了大数据量阵元域信号的网络实时传输、多线程结构等关键技术。利用开发出的仿真系统进行了仿真实验,仿真结果证实了所开发系统的可行性和有效性。该系统可为声自导系统的技术研究与性能评估提供良好的实验平台。更多还原

【Abstract】 A DSP-based torpedo acoustic homing simulation system with element signals being simulated is developed for researching and evaluating torpedo acoustic homing system. As high data volume in signal processing, a multi-DSP parallel processing system is used as the hardware platform in the simulation system to achieve real-time requirement. In this paper, the system architecture and functions of each device are introduced firstly, and then the block diagram of the hardware platform is given. The key techniques including real-time transporting element signals with high data volume in the network and multithreading used in the simulation software are given. At last, the simulation is carried out with the simulation system and the result shows that the system is effective and feasible. It can provide a platform for researching and evaluating torpedo acoustic homing in laboratory.更多还原