GNSS接收机自动测试系统的设计与实现

Design and Implementation of Automation Test System for GNSS Receiver

针对GNSS接收机整机性能快速、全面、精确测试的需求,构建了一种基于NI PXI硬件平台,并采用卫星信号模拟器、虚拟仪器技术和Microsoft Visual Studio 2008软件进行开发的GNSS接收机自动测试系统。同时针对GNSS接收机时间特性、灵敏度特性、精度特性性能指标的特点,提出了组合测试相关指标的方法,文中分别阐述系统的总体设计以及自动测试方法的实现,最后使用BDS接收机进行自动测试系统的验证。大量测试结果表明该GNSS接收机自动测试系统对于GNSS接收机的整机性能测试方便、快速、有效。

For rapid, comprehensive and accurate testing GNSS receiver performance requirements, this paper builds a GNSS receiver automation test system, which based on satellite signal simulator, virtual instruments and Microsoft Visual Studio 2008 as a software developer, and National Instruments PXI hardware platform. For the characteristics of time performance, sensitivity performance and accuracy performance, this paper also presents combination test methods of related performances and separately describes overall design as well as testing methods for system, and finally uses a BDS receiver to validate automatic test system. The extensive results show the automation test system is convenient, fast and effective for GNSS receiver performance test.