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| ????HHT?????????????????????????????о? | |
| 引用本文： | 周莉娟,李辉,杨光亮,马未宇.????HHT?????????????????????????????о?[J].大地测量与地球动力学,2012,32(5):113-117. |
| 作者姓名： | 周莉娟 李辉 杨光亮 马未宇 |
| 作者单位： | 1. 中国地震局地震研究所(地震大地测量重点实验室),武汉430071;中国地震局地壳应力研究所武汉科技创新基地,武汉430071 2. 中国地震局地震研究所(地震大地测量重点实验室),武汉430071;中国地震局地壳应力研究所武汉科技创新基地,武汉430071;中国科学院研究生院地球科学学院地球动力学实验室,北京100039 3. 中国地震台网中心,北京,100045 |
| 基金项目： | 中国地震局地震行业科研专项(201008007);中国地震局地震研究所所长基金(IS200916004) |
| 摘 要： | ?????????HHT????????????????????????????÷?????С??????????????о?????ν?HHT????????????????????????????????С? |
| 关 键 词： | ??????????? HHT ?????? С?????? ???????? |
RESEARCH ON ANALYSIS METHOD OF BACKGROUND NOISE OF CONTINOUS GRAVITY STATIONS BASED ON HHT |
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| Zhou Lijuan,Li Hui,Yang Guangliang,and Ma Weiyu.RESEARCH ON ANALYSIS METHOD OF BACKGROUND NOISE OF CONTINOUS GRAVITY STATIONS BASED ON HHT[J].Journal of Geodesy and Geodynamics,2012,32(5):113-117. | |
| Authors: | Zhou Lijuan Li Hui Yang Guangliang and Ma Weiyu |
| Institution: | 1)Key Laboratory of Earthquake Geodesy,Institute of Seismology,CEA,Wuhan 4300712)Wuhan Base of Institute of Crustal Dynamics,CEA,Wuhan 4300713)Geodynamics Laboratory,College of Earth Sciences,Graduate University of CAS,Beijing 1000394)China Earthquake Networks Center,Beijing 100045 |
| Abstract: | This paper introduces a new method based on HHT algorithm to analyze background noise , which is better than Wavelet transform proved by experiments. Besides, this paper studies how to apply the method to background noise analysis of continuous gravity stations and analyzes background noise of the cave stations with same top cover thickness and geological tectonic conditions with the method, as a result, characteristics of background noise is obtained. |
| Keywords: | continuous gravimetry HHT(Hilbert Huang Trasform) time frequency analysis wavelet transform background noise |
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