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公开(公告)号:US4656480A
公开(公告)日:1987-04-07
申请号:US671663
申请日:1984-11-15
申请人: Roland Allezard , Jean-Luc Degouy
发明人: Roland Allezard , Jean-Luc Degouy
CPC分类号: G01S7/4056 , G01S13/44 , G01S2007/406
摘要: The radar comprises in known manner a transmitter (1), a transmitting antenna (E.sub.1), two receiving antennas (R.sub.1,R.sub.2), mixers (6,7) and means for processing the subtractive beat signals supplied by the mixers for effecting detection of the bearing of a target (10) and of the range and/or the relative velocity of the target. According to the invention, a target simulator is provided to correct the phase errors of electrical and mechanical origins. The simulator comprises a transmission circuit including a modulator (11) and a simulated target echo transmission antenna (E.sub.2) which transmits towards the receiving antenna. The radar also includes means for processing a beat signal derived from the simulated echo and for effecting detection of the simulated target bearing and means for correcting phase errors.
摘要翻译: 该雷达以已知的方式包括发射机(1),发射天线(E1),两个接收天线(R1,R2),混频器(6,7)和用于处理由混频器提供的减法拍频信号的装置,用于实现 目标(10)的轴承以及目标的范围和/或相对速度。 根据本发明,提供了一种目标模拟器来校正电气和机械起源的相位误差。 模拟器包括发射电路,其包括向接收天线发射的调制器(11)和模拟目标回波发射天线(E2)。 雷达还包括用于处理从模拟回波得到的拍频信号并用于实现模拟目标轴承的检测和用于校正相位误差的装置的装置。