本论文涉及的是该系统中高速信号处理的前端，即对雷达回波视频信号进行采集。
This thesis mainly discusses the front-end of the high-speed signal process in the system. Namely, it involves the radar echo video signal sampling.
最后提供了两种典型应用以及设计方法，一种用于图像采集处理结果的显示，另一种用于辅助前端视频设计。
Two design methods and two typical applications one is to display result of image processing, another is to aid for fore terminal video design, are given.
本文详细介绍了一种视频检测中图像预处理系统的设计方案，实现了具有前端视频采集、图像预处理功能的FPGA子系统。
This paper detailedly introduced a solution of image pre-processing system in video detection system and implemented a FPGA subsystem which had the function of video capture and image pre-processing.
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