一种基于PC平台的声纳目标模拟系统设计

声纳目标模拟器的使用可有效缩短声纳的研制周期,其任务是实时仿真声纳系统的阵元信号,要求能够仿真不同海洋情况下,多种阵型的水听器基阵接收到的运动目标发出或发射的相应信号。为了完善系统功能,同时有效满足实时性要求、简化硬件设计规模,根据对现有的声纳目标模拟器进行详细了分析,结合PC平台提出一种系统实现方案。方案以通用计算机为平台,仿真产生实际水听器阵列信号,通过PCI总线经FIFO缓存完成数据的实时连续传输,由可编程逻辑器件(CPLD)实现数据的格式化及编码调制。

The Design of Sonar Target Simulation System based on PC Platform

The use of Sonar target simulator can minish the research cycle of sonar greatly.The simulator is used to produce array signals of sonar systems in real time,and simulate the signals that emitted by moving targets and received by different array form under all kinds of sea conditions.Through analyzing the simulator in existence,it brings forward a system design for perfecting system function,realizing it at real time and predigesting the hardware design.The new project bases on general PC,simulates the signals of real array,transmits data through PCI Bus and external FIFO,formats and modulates the data by CPLD.