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    • 15. 发明授权
    • Radar equipment
    • 雷达设备
    • US07199751B2
    • 2007-04-03
    • US10984544
    • 2004-11-08
    • Satoshi MikamiKaoru YokooTakayuki SasakiTakahiro Suzuki
    • Satoshi MikamiKaoru YokooTakayuki SasakiTakahiro Suzuki
    • G01S13/58G01S13/08G01S13/00G01S7/40G01S13/91
    • G01S13/288G01S7/285G01S13/582G01S13/931G01S2013/9325
    • A radar equipment of the present invention amplifies a reception signal with feedback based on the delay amount obtained from the correlation detection result. Accordingly, it becomes possible to maintain the reception signal (demodulated signal) level to a proper level depending on the distance to the target, and accurate measurement can be achieved with high precision. Namely, the reception signal is amplified depending on the distance to the target, and the reception signal level is made within a tolerable input level range of a logic circuit for performing correlation calculation. In particular, during tracking the target, even when a reflected signal is received with abrupt level variation caused by noise or a reflected signal from an object other than the target, incorrect detection of the target can be avoided by disabling the correlation calculation.
    • 本发明的雷达设备基于从相关检测结果获得的延迟量放大具有反馈的接收信号。 因此,可以根据与目标的距离将接收信号(解调信号)电平维持在适当的水平,并且可以以高精度实现精确的测量。 也就是说,接收信号根据与目标的距离被放大,并且接收信号电平在用于进行相关计算的逻辑电路的可容许的输入电平范围内进行。 特别地,在跟踪目标期间,即使当接收到具有由噪声引起的突然电平变化的反射信号或来自对象以外的对象的反射信号时,也可以通过禁用相关计算来避免目标的不正确检测。