Introduce how to design hardware system structure of radar signal echo simulator by using CPLD and DDS.

介绍利用复杂可编程逻辑器件CPLD和直接数字合成专用电路dds，设计雷达信号回波模拟器的硬件系统。

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Digital Radar Simulator Control Case Courseware Creating System (CCS), a set of professional simulation training system, is developed for training the air traffic controllers.

雷达模拟机管制案例课件制作系统是针对我国民航空管人员的培训需求而开发的专用模拟培训系统。

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Then, it designs a system of radar simulator according to the basic functions of radar.

然后，根据雷达的基本功能初步设计并完成了一套雷达模拟器系统。

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