为了快速准确地获得接收机的测试数据,文中介绍了利用LabVIEW软件开发的针对安捷伦频谱仪(4440A)的控制界面。该界面具有快速调整频谱仪参数设置并实时显示频谱的功能;同时还可以自动将频谱数据以用户所需的格式存储下来,以便完成用户后续对数据的分析、开发等工作。文中以L 波段雷达接收通道的测试为例,给出了通道增益、杂散、稳定性等指标的测试结果,显示了该软件的方便、实用和可扩展的特点。

Software made by LabVIEW for getting measuring data from receiver is described in this paper. The software is set up on a computer to control the agilent spectrum analyzer (E4440A), which can quickly change the spectrum analyzer settings and show the spectrum real timely. Users can also save the data automatically with a specified format in order to analyze them for next work.As an example, a radar receiving channel is measured by the software. We get some important measurements such as amplitude,spurious spectrum and stability, which show the software is convenient, useful and extensible.