公开(公告)号：US4173762A

公开(公告)日：1979-11-06

申请号：US914466

申请日：1978-06-12

申请人： Vernal W. Thompson ,  Wilbert C. Anderson

发明人： Vernal W. Thompson ,  Wilbert C. Anderson

IPC分类号： G01S13/68 ,  H01Q3/10 ,  H01Q3/18 ,  G01S5/02 ,  H01Q3/12

CPC分类号： G01S13/68 ,  H01Q3/10 ,  H01Q3/18

摘要： Apparatus for generating elevation and azimuth reference signals for use in demodulating a tracking error signal to provide elevation and azimuth error components for use in adjusting the position of a tracking conical scan radar antenna, includes a template ring having a notched periphery and being attached to a rotatable nutator of the antenna such that its peripheral notches are in a predetermined angular phase relationship with a reference position on a feed horn attached on the nutator, during rotation of the feed horn with the nutator. The apparatus further includes an optical transducer and electronic circuitry coupled thereto for producing the reference signals from a signal generated by the transducer in response to rotation of the ring with the nutator. As the ring rotates with the nutator, its notched periphery makes or breaks a photon path between light beam generating and sensing elements of the transducer. The sensing element then generates the signal which is received by the electronic circuitry. In addition to the two reference signals produced by the circuitry, a sync signal is generated and used internally within the circuitry to insure that the reference signals produced are in a proper phase relationship to the reference position on the feed horn of the nutator during rotation thereof.

摘要翻译： 用于产生用于解调跟踪误差信号以提供用于调整跟踪锥形扫描雷达天线的位置的仰角和方位角误差分量的仰角和方位参考信号的装置包括具有凹口周边并被附接到 天线的可旋转的辅助器，使得其周边凹口与馈送喇叭与辅助器旋转期间，在附接在所述制动器上的馈电喇叭上的基准位置处于预定的角度相位关系。 该装置还包括光学换能器和耦合到其上的电子电路，用于根据由换能器产生的信号响应于所述环与所述制动器的旋转产生参考信号。 随着环与调节器一起旋转，其凹口的周边使得在光束产生和传感器的感测元件之间的光子路径发生或断开。 感测元件然后产生由电子电路接收的信号。 除了由电路产生的两个参考信号之外，产生同步信号并在电路内部使用同步信号，以确保所产生的参考信号与其在旋转期间在同步器的馈电喇叭上的参考位置处于适当的相位关系 。