通过对常用计算机接口的对比分析，结合实际应用及CPLD技术，讨论丁一种基于USB2．0协议的雷达回波模拟器的设计方案，该方案克服了传统接口的局限性，支持热拔插和即插即用，而且有效地解决了雷达回波模拟器中计算机与外设之间大容量数据的高速传输问题，最高传输速度可达96MB／s，在数据采集、图像处理等需要大容量、高速度数据传输的领域也有着广泛应用价值。

Through the comparison and analysis of the interface of computer,integrated the application and CPLD with radar system simulation,a design of radar system simulation based on usb2.0 protocol was introduced in this paper.This design overcomes the limit of traditional interface,and support hot attach&detach,plug-and-play,and the mass and high speed transmission between computer and external cache was realized.The speed of transmission can reach at 96MB/s.It has a lot of applications in the acquisition and image processing which need mass and high speed transmission.

TN955