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| ????EEMD??GPS?????????????????????? | |
| 引用本文： | 张恒璟,程鹏飞.????EEMD??GPS??????????????????????[J].大地测量与地球动力学,2014,34(2):79-83. |
| 作者姓名： | 张恒璟 程鹏飞 |
| 作者单位： | 1）辽宁工程技术大学测绘与地理科学学院，阜新 123000 2）地理空间信息工程国家测绘地理信息局重点实验室，北京 100830 3）国家测绘产品质量检验测试中心，北京 100830 |
| 基金项目： | 国家自然科学基金（41074011，41374027）；地理空间信息工程国家测绘地理信息局重点实验室开放基金（201324） |
| 摘 要： | ?????????EEMD??GPS???????????????????????????????????????徭??????????????????????????????????????????????????????????????????????й?????CORS??????????????????????????飬?????????????????????????????????????????????????????????????????????????? |
| 关 键 词： | GPS?????????? ???徭??????? ?????? ??????? ??????????? |
| 收稿时间： | 2013-10-01 |
NOISE RECOGNITION AND EXTRACTION OF GPS HEIGHT TIME SERIES BASED ON EEMD |
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| Zhang Hengjing,Cheng Pengfei.NOISE RECOGNITION AND EXTRACTION OF GPS HEIGHT TIME SERIES BASED ON EEMD[J].Journal of Geodesy and Geodynamics,2014,34(2):79-83. | |
| Authors: | Zhang Hengjing Cheng Pengfei |
| Institution: | 1）School of Geomatics，Liaoning Technical University，Fuxin 123000 2）Key Laboratory of Geo informatics of State Bureau of Surveying and Mapping，Beijing 100830 3）Quality Inspection and Test Center of National Surveying and Mapping Products，Beijing 100830 |
| Abstract: | A new signal de noising method based on ensemble empirical mode decomposition is presented.Firstly the signal is decomposed by EEMD.The boundary of signal and noise is identified primarily based on consecutive mean squared error criterion.Finally the indexes of mean period and energy density also their product are used for the signal de noising.The de noising effect is presented and valid through GPS height time series experience of two national CORS stations. |
| Keywords: | GPS height time series Ensemble Empirical Mode Decomposition（EEMD） signal de-noising energy density Consecutive Mean Squared Error（CMSE） |
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