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公开(公告)号:US4208657A
公开(公告)日:1980-06-17
申请号:US934147
申请日:1978-08-16
摘要: A system for electronically producing and displaying target position history trails in a PPI radar. Digital target positions within a selected sector zone from all targets meeting predetermined amplitude and duration criteria are stored in a memory for single azimuth scans at predetermined intervals. The data from the scans are interleaved and read out of the memory for display with the real time PPI targets. When the memory is filled, the oldest plots from each target are dropped to make room for new plots.
摘要翻译: 一种用于在PPI雷达中电子产生和显示目标位置历史轨迹的系统。 来自所有目标的所选扇区区域内的数字目标位置满足预定的幅度和持续时间准则,以预定的间隔被存储在用于单方位扫描的存储器中。 来自扫描的数据被交织并从存储器中读出以用实时PPI目标显示。 当内存填满时,每个目标的最旧的地块都会被丢弃,为新的地块腾出空间。