基于CPCI总线的波控单元自动测试台

Automatic Test Bench for Beam-steering Unit Based on CPCI Bus

由于波控单元数量大、接口多而且功能复杂,基于常规仪器仪表的测试方法不仅测试效率低,而且无法满足功能测试覆盖性要求.基于CPCI总线开放性强、可靠性高、扩充性好、支持热插拔等优势,本文提出了一种基于CPCI总线的波控单元自动测试设计方案,重点介绍了测试台的组成及各功能模块的设计原理,论述了波控单元正向测试和逆向测试的流程.测试结果表明,该测试台可在1 ms内自动完成波控单元的正向和逆向功能测试、故障判断和显示,功能测试覆盖率达到100%,符合波控单元测试快速、准确、全面的设计要求.

Due to the large number of beam-steering units,many interfaces and complex functions,the test methods based on conventional instruments and meters not only have low test efficiency,but also cannot meet the functional test coverage requirements.Based on the advantages of strong openness,high reliability,good expandability,and hot-plug support of the CPCI bus.In this paper,a design scheme for automatic test of beam-steering unit based on CPCI bus is proposed,the composition of the test bench and the design principle of each function module are introduced emphatically,and the flow of forward test and reverse test of the wave control unit is discussed.The test results show that the test bench can automatically complete the forward and reverse function test,fault judgment and display of the beam-steering unit within 1 min,and the functional test coverage reaches 100%,which meets the fast,accurate and comprehensive design requirements.