给出雷达机内自检(B IT)的概述和对B IT的基本要求,讨论了机扫雷达的B IT设计方案,加电B IT、周期B IT和维护B IT在系统中的使用。介绍了系统B IT顶层设计、罩内设备B IT设计和舱内B IT设计。重点讨论了移相器的B IT设计,以及在不占用系统资源条件下将射频B IT测试信号引入罩内的实现方法。

The general descriptions and the basic requirements of radar BIT are proposed,and mechanic scan radar BIT design schemes and the application of Power-on BIT,Period BIT and Maintenance BIT are discussed.Radar BIT system top level design,dome equipment BIT design and cabin devices BIT design are presented.In this paper,the emphases are put on the phase shifter test and the idea of the introduction of RF bit test signal to dome.

TN958