基于PXI总线和SCPI程控的某型雷达通频带测试系统设计

Design of Radar Pass Band Test System Based on PXI Bus and SCPI Commands

摘要:

文章主要研究了基于PXI总线和SCPI命令的雷达通频带测试系统,该测试系统由虚拟仪器库、性能测试模块、仪器程控模块、性能测试流程管理模块、测试结果分析模块5个部分组成；文章详细描述了测试系统的软硬件组成,并对测试的数据进行处理分析,提出了改进雷达通频带测试结果的具体算法,该算法能有效的滤除测试结果中的飞点,在对中心频率为28.5MHz、通频带为1.5MHz的雷达通频带性能测试中取得理想效果；基于本系统,能实现雷达通频带性能测试的自动化,降低对操作人员的依赖程度,并能极大地减少测试时间、提高测试的精度。

Abstract:

This paper mainly researched on the test system of radar pass band based on PXI bus and SCPI commands. The test system is composed of virtual instrument module, performance test module, instrument control module, process management module and results analysis module. This paper described the hardware and software composition of the test system, and analyzed the result data. At last, one effective algorithm is to be put forward to improve the precision of test results with deleting error point. The ideal effect is obtained on testing the radar which center frequency is 28.5MHz and bandwidth is 1.5MHz. This test system can realize the automation test of radar pass band, reduce dependence on the operator, reduce test time, and improve the test precision.