GPS/COMPASS双模接收机多路径效应分析  

GPS/COMPASS dual receiver multipath effects analysis

作　　者：张瑞[1] 谢亚楠[1] 赵海兰[1] 于春艳[1] 

机构地区：[1]上海大学通信与信息工程学院,上海200072

出　　处：《电子测量技术》2014年第5期103-107,共5页Electronic Measurement Technology

摘　　要：重点讨论了GPS/COMPASS双模接收机伪距多路径值计算及其频谱分析方法,指出利用TEQC生成的数据评估报告(高度角数据、方位角数据及多路径误差数据)三组数据描绘GPS/COMPASS卫星运行轨迹图。该运行轨迹图能动态地反映各卫星的运动轨迹以及在运动的过程中各自的多径误差数值大小,并能很好的反映卫星在高空中的几何形状分布情况,为测站的数据质量评估与分析提供一个有利的工具。另外,FFT频谱分析表明,伪距多路径效应的功率谱密度分布特性分析能帮助我们建设地面监测站。试验及数据处理与分析取得了较为满意的结果。Using TEQC and MATLAB as a platform for data processing and analysis,the paper discusses the GPS/ COMPASS dual-model receiver pseudorange multipath value calculation and its spectrum analysis method.Data （elevation angle,azimuth angle and the multipath error data） generated by TEQC assessments：using these three groups of data can draw a satellite orbit sky view map （that is,the polar diagram）.The sky view map can dynamically reflect each satellite trajectory and the motion of each multipath error in the process of numerical size,and can well reflect the movement state of satellites in the sky,providing a good tool for the station of the data quality evaluation and analysis.In addition,the FFT spectrum analysis shows that using pseudorange multipath effect of the power spectral density distribution analysis can help us to build the ground GPS / COMPASS observation stations.

关 键 词：GPS COMPASS TEQC MATLAB 双模接收机 多路径效应 

分 类 号：P228[天文地球—大地测量学与测量工程]