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1. A method of quantitative analysis based on deviation coefficient and sliding time window | |||
ZHANG Zhanyang,YANG Guohua,SUN Qikai,ZHANG Junqing,HE Yadong | |||
Surveying and Mapping Technology 27 December 2019 | |||
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Abstract:In order to scientifically and accurately describing the shape of deviation distribution curve of the short-level segment data of seismostation, this paper used deviation coefficient and sliding time window to analyze and summarize trends of deviation distribution curves of 2-3(k) segment of Chaoyang seismostation quantitatively before and after Chaoyang M4.6 and M4.3 earthquakes on May 22, 2016: general data anomalies caused by crustal deformation reveal the deviation coefficients get larger and the shapes of deviation distribution curves of the segment deviate from normal distribution before the earthquake, and the deviation coefficients get smaller and the shapes of deviation distribution curves of the segment restore to normal distribution after the earthquake. Then preliminary analysis of earthquake risk near the seismostation was made based on recent data. As a result, the figures prove that this quantitative analysis method has reference valuable for data anomalies recognition before earthquake to a certain extent, which also provides a new way of research for earthquake monitoring and prediction analyzing. | |||
TO cite this article:ZHANG Zhanyang,YANG Guohua,SUN Qikai, et al. A method of quantitative analysis based on deviation coefficient and sliding time window[J]. |
2. Assessment of phase unwrapping approaches | |||
Fu Tuo,Zhangshubi | |||
Surveying and Mapping Technology 25 April 2011 | |||
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Abstract:With GAMMA software, VC++ and MATLAB coding implementing six kinds of phase unwrapping approaches ,this paper presents the best method for different situations through two sets of experimental results used for analysing and comparing run time and precision. In the plain and alpine area, the best phase unwrapping methods are separately Goldstein branch-cut method and Minimum Cost Network Flow method. | |||
TO cite this article:Fu Tuo,Zhangshubi. Assessment of phase unwrapping approaches[OL].[25 April 2011] http://en.paper.edu.cn/en_releasepaper/content/4423962 |
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