公开(公告)号：US5841394A

公开(公告)日：1998-11-24

申请号：US872899

申请日：1997-06-11

申请人： William G. Sterns ,  David M. Cook ,  Richard J. Ouwerkerk

发明人： William G. Sterns ,  David M. Cook ,  Richard J. Ouwerkerk

IPC分类号： G01S7/40 ,  G01S13/91 ,  H01Q3/26

CPC分类号： G01S7/4008 ,  H01Q3/267 ,  G01S13/913

摘要： A radar system is described, which includes a built-in calibration/fault detection apparatus that enables rapid and easy calibration of the system. The system includes a long extrusion (70) forming a feed waveguide (90), a calibration waveguide (92), and a base (94) of a horn antenna. A linear array of TR (transmit/receive) units (42) are mounted on the extrusion, with each having a feed probe (100) that receives a feed signal, changes its phase and amplifies it, and delivers it through a monopole (110) to the horn. The calibration waveguide is coupled through holes (130) to the horn, with a calibration pickup (132) mounted at the end of the calibration waveguide. During calibration, one TR unit at a time is energized, and its output is detected by the calibration pickup to check the amplitude and phase of the TR unit.

摘要翻译： 描述了雷达系统，其包括内置的校准/故障检测装置，其能够快速和容易地校准系统。 该系统包括形成馈电波导（90）的长挤出（70），校准波导（92）和喇叭天线的基座（94）。 TR（发送/接收）单元（42）的线性阵列安装在挤出件上，每个具有馈送探针（100），其接收馈送信号，改变其相位并放大它，并将其传送通过单极子（110 ）到角。 校准波导通过孔（130）耦合到喇叭，校准波导（132）安装在校准波导的末端。 在校准期间，一次一个TR单元通电，其输出由校准拾取器检测，以检查TR单元的幅度和相位。