%0 Journal Article
%T A New Algorithm of Pulse Period Ambiguity Resolution for XPNAV<br>一种新的XPNAV系统解脉冲周期模糊算法
%A Xie Zhen-hua Xu Lu-ping Guo Wei Ni Guang-ren
%A <br>谢振华
%A 许录平
%A 郭伟
%A 倪广仁
%J 电子与信息学报
%D 2008
%I 
%X For reducing the computation complexity of pulse period ambiguity resolution for X-ray Pulsars NAVigation (XPNAV) and improving its convenience in engineering implementation, the Optimization Model for 4 X-ray pulsars localization is presented based on the orthogonality principle. A new relation formula of period number of the Time Difference Of Arrival (TDOA) of pulses is presented, whose factors are decided by the characteristics of X-ray pulsars and whose constancy is decided by TDOA phase residue. Theoretical analysis and experimental simulation show that the new method can reduce the complexity of computation obviously. Meanwhile the relation formula of the new ambiguity resolution has constants, which can be solidified into hardware or be stored into memory unit, so that the new ambiguity resolution is easy to implement in engineering.
%K XPNAV<br>自主天文导航
%K X射线脉冲星
%K 解脉冲周期模糊
%K 正交性原理
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=8E6C48B4DD07CC75C94FE7774752C742&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=9CF7A0430CBB2DFD&sid=C83A8C68D6FA0736&eid=92E8E2714FC49B30&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=1&reference_num=7