%0 Journal Article
%T RESEARCH ON NOISE CHARACTERISTICS OF TIME SERIES OF CORS SITES COORDINATES IN SHANXI REGION<br>山西CORS坐标时间序列噪声特征分析
%A Zhang Yanfen
%A Bi Gang
%A Chen Hua
%A and Feng Yantong
%A <br>张彦芬
%A 毕 刚
%A 陈 华
%A 冯彦同
%J 大地测量与地球动力学
%D 2012
%I 
%X The data of Shanxi region CORS nearly two years are processed and then Shanxi CORS sites coordinates time series can be abtained subsequently.For the work,the CATS software is used to analyzed the noise characteristics of sites coordinates time series with Maximum Likelihood Estimation(MLE) and following useful conclusions are drawn.Firstly,there are not only white noise but also colored noise in CORS coordinates time series.Secondly,the noise model in the directions N,E,U of CORS coordinates time series is not identical.In the N,E direction,the "WN + FN" noise model is oplimum and the "WN + FN + RWN" noise model in the U direction.Finally,when CORS coordinates time series are used to fit velocity,not only white noise but also colored noise should be considered for more correct relocity valuations.
%K Shanxi region CORS
%K coordinates time series
%K CATS software
%K Maximum Likelihood Estimation(MLE)
%K noise characteristics<br>山西CORS
%K 坐标时间序列
%K CATS软件
%K 最大似然估计法
%K 噪声特征
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=DA72A78627FE64EAA572951EA05D274A&jid=73A1A428591E600EF664B596512A2997&aid=21CB0722CA48644FEB00D7FCC4C6CE9C&yid=99E9153A83D4CB11&vid=9971A5E270697F23&iid=E158A972A605785F&sid=1D0FA33DA02ABACD&eid=5C3443B19473A746&journal_id=1671-5942&journal_name=大地测量与地球动力学&referenced_num=0&reference_num=0