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介绍了当今各种雷达显示体制的特点,阐明了用光栅扫描显示器作为雷达显示器的优点,重点分析了将随机扫描方式雷达显示器改成电视光栅形式的雷达显示器所要作的坐标变换及视频处理等重要工作,得出了具体的实施方案。用86/30单板机作为主制机协调各部分的工作,可以方便地进行雷达画面和量程的转换。采用覆盖处理技术及视频选大进行方位和距离方向的积累,大大提高了视频信号的信噪比和目标的发现概率,同时减小了天线转速不均匀的影响;用硬件方法产生扫描线解决了扫描线与视频信息的同步问题,同时也减轻了图形处理器的负担;用队列器件作为存储体的地址和数据缓存器可以方便地解决各个处理部分之间的异步通讯问题,大大简化了系统的设计。
The characteristics of various radar display systems are introduced. The advantages of using raster scan display as radar display are analyzed. The key points of coordinate transformation and video processing of radar display in the form of TV raster are analyzed emphatically Work, come to a specific implementation plan. 86/30 single-board machine as the mainframe coordination of various parts of the work, you can easily switch the radar screen and range. Adopting the technology of overlay and the large selection of video for the accumulation of azimuth and distance direction, the signal-to-noise ratio of the video signal and the probability of finding the target are greatly increased, meanwhile the influence of the uneven speed of the antenna is reduced; the generation of the scanning line by the hardware method solves Scan lines and video information synchronization problems, but also reduce the burden on the graphics processor; queue device as a memory bank address and data buffer can easily solve the problem of asynchronous communication between the various processing parts, greatly simplifying the system design.