信道化干扰侦察接收机组件互换性设计

Interchangeable Assembly Design of Channelized Jamming Reconnaissance Receiver

给出了一种信道化的干扰侦察接收机,分析了虚假响应、幅度响应、温度漂移等影响因素。针对互换性需求,对其进行了结构划分,对射频组件和中频组件设计了独立的校准补偿,估计了整机的系统误差。最后在不同温度及组件(备件)互换情况下进行了实际测试,绝对精度及相对精度均达到了±2 dB,实现了减少备件,提高系统维修性、保障性和可靠性的目的。

A channelized jamming reconnaissance receiver is presented in this paper, and the false response, amplitude response and temperature drift are analyzed, which influence receiver performance. For the sake of interchangeableness, we divided the receiver into RF assembly and IF assembly, then compensated each assembly independently and estimated system error. At last, we tested the receiver under different temperature and assembly （ spare part） interchanged situations. The results show that both absolute and relative accuracy reach ± 2 dB. The purpose of cutting down spare parts and improving maintainability, supportability, reliability has been achieved.