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2. 发明授权

US3703005A Radar signal phase correction 失效
标题翻译：雷达信号相位校正
公开(公告)号：US3703005A
公开(公告)日：1972-11-14
申请号：US3703005D
申请日：1965-06-21
申请人： HUGHES AIRCRAFT CO
发明人： HERMAN ELVIN E , LYM VERNON W , MCCORD HENRY L
IPC分类号： G01S7/288 , G01S13/534 , G01S7/28 , G01S9/02
CPC分类号： G01S7/288 , G01S13/534
摘要： 19. In a radar circuit of the type including a transmitter section having a circuit for generating and transmitting pulsed rf oscillatory signals, a receiver section having a circuit for detecting echo signals, the combination therewith of: a means for generating a clock reference signal; means coupled to receive a portion of the pulsed rf oscillator signals generated by the transmitter and coupled to receive the clock reference signal for detecting phase differences between the transmitted signal and the clock reference signal and for generating an error signal that is proportional to a function of the detected phase differences therebetween; means coupled to receive the error signal for storing the received error signal during the interpulsed period between transmitted pulse signals; a stable local oscillator means in the receiving section for generating a c-w output signal; phase shifter means coupled to receive the stable local oscillator output signal and to receive the error signal for phase shifting the local oscillator output signal to remove phase variations in the local oscillator output signal relative to the transmitted signal resulting from rf starting phase variations in the transmitted pulses; and means for receiving the echo signals and for receiving the phase shifted local oscillator signals for producing a coherent echo signal.

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