发明授权
- 专利标题: Circuit arrangement for improving accuracy of angular measurements in radar systems
- 专利标题(中): 用于提高雷达系统角度测量精度的电路装置
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申请号: US918791申请日: 1978-06-26
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公开(公告)号: US4220953A公开(公告)日: 1980-09-02
- 发明人: Roland Carre
- 申请人: Roland Carre
- 申请人地址: FRX Paris
- 专利权人: Thomson-CSF
- 当前专利权人: Thomson-CSF
- 当前专利权人地址: FRX Paris
- 优先权: FRX7719617 19770627
- 主分类号: G01S13/44
- IPC分类号: G01S13/44 ; G01S13/68 ; G01S9/22
摘要:
To improve the accuracy of angular measurements in a radar system by suppressing noise due to target glint, an angular-deviation signal .epsilon. derived from the output signals .SIGMA. and .DELTA. of a sum channel and a difference channel is gated so as to be read only when the sum signal .SIGMA. is at or near a maximum. In a more elaborate embodiment, passage of the deviation signal .epsilon. is also blocked when a quadrature-deviation signal .epsilon.q, likewise derived from the sum and difference signals .SIGMA. and .DELTA., has an absolute magnitude above a preferably adjustable threshold.
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