奇异谱分析滤波法及其在GPS多路径去噪中的应用  

Singular Spectrum Analysis and Its Application in GPS Multipath Filtering

作　　者：李敬唐 

机构地区：[1]茂名市国土资源勘探测绘院,广东茂名525000

出　　处：《测绘地理信息》2017年第3期10-13,共4页Journal of Geomatics

摘　　要：详细介绍了奇异谱分析的原理,并用仿真数据对其准确性和精度进行验证,重建序列很好地还原了无噪声的原始序列。利用奇异谱分析对某高层建筑变形监测数据进行处理,得到的重建序列较为光滑,很好地去除了随机噪声以及变化较大的多路径效应的影响,符合建筑物缓慢、连续的变形规律。进一步与高精度测量机器人观测数据进行对比,结果表明,奇异谱分析重建序列精度能够满足变形监测精度的要求。This paper introduces the principle of singular spectrum analysis,verifies its accuracy and precision by using simulation data, and restores the non-noise original sequence with a good reconstruction of the sequence. Using singular spectrum analysis of a high rise building deformation monito- ring data processing, the reconstructed sequence is relatively smooth, and greatly removes the effect of random noise and muhipath , in line with the slow, continuous deformation building law. Further data are compared with the total sta- tion, the results show that the reconstructed sequence by u- sing Singular Spectrum Analysis can meet the requirements of deformation monitoring precision.

关 键 词：奇异谱分析 多路径效应误差 GPS变形监测 滤波去噪 

分 类 号：P228.42[天文地球—大地测量学与测量工程]