基于ESPI接收机的GSM-R场强测试系统的设计与实现

Design and Implementation of GSM-R Field Strength Test System Based on ESPI Receiver

笔者介绍了一种基于ESPI接收机的GSM-R场强测试系统设计,实现了铁路沿线GSM-R无线网络场强数据的自动采集、分析。导航方面采用真实+虚拟双GPS和自主匹配方式,大幅度简化用户测试前的设置,并保证测试不会因GPS信号而中断。在数据处理方面采用随机抽样、实时裁剪、二分法排序等方法,以满足列车高速行驶过程中采集大量数据及存储的需求。显示方面在二维坐标系显示数据曲线图,并实时跟随鼠标显示任意位置的测试结果,使用户准确观察测试结果,便于进一步分析。

This paper introduces a design of GSM-R field strength test system based on ESPI receiver,which realizes the automatic collection and analysis of field strength data in GSM-R wireless network along railway line.Navigation adopts real+virtual dual GPS and self-matching mode,which greatly simplifies the user’s settings before the test and ensures that the test will not be interrupted by GPS signals.In data processing,random sampling,real-time clipping and dichotomy sorting are used to meet the needs of collecting and storing large amounts of data during high-speed train running.In the aspect of display,the data curve is displayed in the two-dimensional coordinate system,and the test results at any position are displayed with the mouse in real time,which enables users to observe the test results accurately and facilitate further analysis.