公开(公告)号：US3778829A

公开(公告)日：1973-12-11

申请号：US3778829D

申请日：1972-02-18

申请人： WESTINGHOUSE ELECTRIC CORP

发明人： LONGUEMARE R ,  MOONEY D

IPC分类号： G01S13/68 ,  G01S9/22

CPC分类号： G01S13/685

摘要： A Guarded Monopulse Radar System is disclosed for generating azimuth and elevation difference (or error) signals proportional to the angular displacement of the detected radar target from the antenna boresight axis and for generating a sum signal indicative of the target range. The azimuth and elevation difference signals are modulated in quadrature with sine and cosine signals of a reference frequency. The modulated signals are then added to a portion of the sum signal to provide a composite signal. The aforementioned steps are performed at microwave frequencies and the resultant signals are subsequently converted to IF signals by ''''beating'''' with a signal derived from a local oscillator. IF signals corresponding to the sum signal and the composite signal are amplified in a circuitry including fast, automatic gain control (AGC). The amplified signals are then demodulated in accordance with the reference signal to provide signals indicative of azimuth and elevation errors.

摘要翻译： 公开了一种保护的单脉冲雷达系统，用于产生与检测到的雷达目标与天线远视轴的角位移成比例的方位角和高程差（或误差）信号，并用于产生指示目标范围的和信号。 方位角和高程差信号用参考频率的正弦和余弦信号进行正交调制。 然后将调制信号加到和信号的一部分以提供复合信号。 上述步骤在微波频率下执行，并且所得到的信号随后通过用本地振荡器导出的信号进行“殴打”而被转换成IF信号。 对于和信号和复合信号对应的IF信号在包括快速自动增益控制（AGC）的电路中被放大。 然后根据参考信号解调放大的信号以提供指示方位角和仰角误差的信号。