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雷达目标回波信号模拟与目标识别测试系统

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雷达目标回波信号模拟与目标识别测试系统

本发明公开了一种由主控机、雷达目标信号模拟卡和显示器组成的雷达目标回波信号模拟与目标识别测试系统,主控机上安装有主控软件,雷达目标信号模拟卡与主控机通过PCI总线连接。主控软件由参数设置、目标信号生成、海杂波信号生成、雷达目标信号模拟卡驱动和回波信号显示5个程序组成;雷达目标信号模拟卡由PCI总线控制器、FPGA控制逻辑、目标信号发生模块、海杂波模拟模块、存储器模块、D/A变换模块、晶振模块以及电源模块组成,它从主控软件接收控制参数、目标数据和海杂波数据,生成同步信号、天线方位信号和相干时钟信号,对目标数据和海杂波数据进行重构和合成生成目标信号。本发明可生成三级模拟信号,对雷达目标识别系统进行测试。

Testingsystem for radar target echo signal simulating and target recognizing

Theinvention discloses a testing system for radar target echo signal simulatingand target recognizing. The testing system is composed of a main controlcomputer, a radar target signal simulating card and a display. The main controlcomputer is provided with main control software and is connected with the radartarget signal simulating card through a PCI bus. The main control software iscomposed of five programs for parameter setting, target signal generating, seaclutter signal generating, radar target signal simulating card driving and echosignal displaying. The radar target signal simulating card is composed of a PCIbus controller, FPGA control logic, a target signal generating module, a seaclutter simulating module, a storage module, a D/A conversion module, a crystaloscillator module and a power supply module. The radar target signal simulatingcard receives control parameters, target data and sea clutter data from themain control software, generates a synchronizing signal, an antenna azimuthsignal and a coherent clock signal, and generates a target signal byreconstructing and synthesizing the target data and the sea clutter data. Thetesting system can generate three-level simulation signals to test a radartarget recognizing system.

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