一种航天器LVDS接口电路实时测试方法

针对航天器上LVDS接口电路无规范测试方法的现状,对LVDS接口电路进行测试方法研究,以当前LVDS接口电路为基础,设计了一种利用"夹具"进行实时测试的方法,并据此仿真设计了LVDS接口电路,搭建了其测试平台,验证了夹具在实时性测试中的可用性。专用测试夹具可为航天器测试中LVDS链路故障定位提供有效的实时测试方法,并可提高故障定位及测试效率。

An Approach to Real-time Test of LVDS Interface Circuit for Spacecraft

For meeting the lack of specification for the test method of LVDS interface circuit for spacecraft,this paper investigates the test method of LVDS interface circuit for spacecraft. A fix ture is designed for real-time testing of the LVDS interface circuit for spacecraft, and a simulation for the LVDS interface circuit is carried out. A platform for LVDS interface circuit test is estab- lished and the availability of the fixture in real-time testing is verified. The special test fixture provides a highly efficient real-time test method for the fault-positioning in the LVDS link of the spacecraft, and improves the efficieneies of whole-machine test and fault-positioning.