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分析了视频—时基压缩在数字式录取、随机扫描显示终端上的必要性。在保证雷达视频信息的实时显示,减小雷达视频终端损失前提下,实现了一种单存储器雷达视频—时基压缩系统,并进行了系统性能分析。该系统改变传统采用双存储器实现的做法,较大程度地降低了电路硬件量,增长了字符等二次信息显示时间,在实际应用中,取得了很好的效果。
The necessity of video-time base compression in digital recording and random scanning of display terminals is analyzed. On the premise of ensuring the real-time display of radar video information and reducing the loss of radar video terminal, a single-memory radar video-time base compression system is realized and the system performance analysis is carried out. The system changes the traditional method of using dual memory to achieve a greater reduction in the amount of circuit hardware, an increase of characters and other secondary information display time, in practical applications, and achieved good results.