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公开(公告)号:US4068233A
公开(公告)日:1978-01-10
申请号:US714171
申请日:1976-08-13
CPC分类号: G01S7/12 , G01S7/2928
摘要: A radar system with digitized video having a digital interference rejection circuit for eliminating spiral interference caused by nearby radar transmitters operating in the same frequency band. Video signals from each sweep are stored in a random access memory. A comparison is made between adjacent range cells in the present "live" video signal and the video signal from the previous sweep. The output video signal to the display device is inhibited should the comparison indicate the presence of interference.
摘要翻译: 具有数字化视频的雷达系统具有数字干扰抑制电路,用于消除在相同频带中工作的附近雷达发射机引起的螺旋干扰。 来自每个扫描的视频信号被存储在随机存取存储器中。 在当前的“实时”视频信号中的相邻范围单元和来自前一扫描的视频信号之间进行比较。 如果比较表明存在干扰,则显示设备的输出视频信号被禁止。