船载USB/UCB自动化测试系统的设计与实现

Design and Implementation of Automatic Test System for USB/UCB TT&C System on Measurement Ship

摘要:

由于船载USB/UCB测控系统微波器件众多、信号线缆接线关系复杂,从而给技术指标测试和日常设备标校带来繁杂的工作量；为了解决上述问题,文章通过分析USB/UCB测控系统的信号流程关系及关键信号节点,借助LabWindows/CVI软件及GPIB总线的支持,构建船载USB/UCB自动化测试系统,并详细阐述了系统的硬件组成和软件编程；在系统监控台软件的统一组织下,结合系统内其它设备,通过测试控制软件控制开关网络实现对多种接口和多路通道的控制,灵活组建测试平台,实现无线/有线、射频/中频等工作方式,完成相应指标的自动化测试并对实时数据进行处理分析；系统扩展性好,自动化程度高,改进了以往手动对硬件进行设置和测试方法,节约了时间成本,操作界面友好,在上行链路三阶交调测试中进行应用,结果表明该自动化测试系统操作简便快捷、测试结果准确可靠。

Abstract:

Because of numerous microwave equipment and complicated connection relation in TT&C system, it takes multifarious load to have technical testing and calibration about USB/UCB TT&C system on the measurement ship. To resolve the trouble, the signal flow chart in TT&C system and pivotal signal nodes are analysed. An automatic test system is designed and implemented for USB/UCB TT&C system with GPIB port by using LabWindows/CVI programming platform. In this paper, the hardware compose and software programme is also expatiated. In virtue of the system monitor cell controlling and other equipment in system, testing platform is neatly established to accomplish technical testing in the way of wireless or wire and the way of RF or IF. Multi-interface and multi-channels are controlled by measurement and control software, and completion the test function through real time data analysis and processing. The system ameliorate the traditional test method that test by intercalate hardware, and economize cost. It has good expansion, high automation, good interface and applied in the third-order intermodulation in up-link channel. It shows that the automatic test system not only has agile structure and high efficiency but also has good accuracy and well stability.