摘要
提出EMD和SSA组合方法对GNSS观测数据进行多路径误差滤波。通过对实际GNSS变形监测数据处理,结果表明,该方法能够有效剔除多路径误差,获取建筑物真实结构震动信息。与高精度测量机器人观测数据对比结果显示,经过EMD+SSA方法处理后,观测精度获得明显提高,能够满足变形监测的精度要求。
The EMD combined SSA method is proposed to carry out the multi path error filtering of GPS observation data.The results show that the method can effectively eliminate the multi path error and obtain the information of the real structure of the building,which is based on the actual GPS deformation monitoring data processing.Compared with the results of high precision measurement robot,after the EMD+SSA method,the observation accuracy is improved obviously,and it can meet the accuracy requirement of the deformation monitoring.
出处
《北京测绘》
2016年第1期84-87,共4页
Beijing Surveying and Mapping
