%0 Journal Article
%T ACCURACY ASSESSMENT OF TWO FITTING METHODS FOR GPS PRECISE EPHEMERIS<br>两种常用GPS星历拟合方法的精度分析
%A Feng Wei
%A Xue Zhihong
%A Shao Jiani
%A Fan Yuebo
%A <br>冯炜
%A 薛志宏
%A 邵佳妮
%A 樊月波
%J 大地测量与地球动力学
%D 2010
%I 
%X Two polynomial fitting methods:Chebyshev polynomial fitting and Lagrange polynomial fitting,for generating GPS satellite coordinates from precise ephemeris are introduced.The impacts of fitting time span and polynomial order with these two methods to fitting accuracy are discussed.Some useful conclusions are obtained from the tests.
%K GPS
%K ephemeris
%K Chebyshev polynomial fitting
%K Lagrange polynomial fitting
%K fitting accuracy<br>全球定位系统
%K 星历
%K 切比雪夫多项式拟合
%K 勒让德多项式拟合
%K 拟合精度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=DA72A78627FE64EAA572951EA05D274A&jid=73A1A428591E600EF664B596512A2997&aid=4E39EE331C9E8C9434E233CBDD499E43&yid=140ECF96957D60B2&vid=340AC2BF8E7AB4FD&iid=CA4FD0336C81A37A&sid=769BD58726D66E7D&eid=EB552E4CFC85690B&journal_id=1671-5942&journal_name=大地测量与地球动力学&referenced_num=1&reference_num=8