OTF方式下短程GPS精密动态定位的数学模型  

Mathematical Model of Short-Distance and Precise GPS Mobile Positioning in the OTF Way

作　　者：周扬眉[1] 刘经南[2] 

机构地区：[1]武汉大学GPS工程技术研究中心,武汉市珞喻路129号430079 [2]武汉大学校长办公室,武汉市珞珈山430072

出　　处：《武汉大学学报（信息科学版）》2004年第8期704-707,719,共5页Geomatics and Information Science of Wuhan University

基　　金：国家自然科学基金资助项目 ( 4 0 1740 0 5 )

摘　　要：讨论了在OTF方式下短程GPS精密动态定位的函数模型和随机模型 ,给出了一个适宜于在计算机上编程实现的通用法方程式 ,并通过设置权比因子是否为零来达到这四类观测值选择使用的目的。阐明了当只选用两类精码观测值进行动态定位时 ,OTF方式与单历元方式是等价的 。The function model and the stochastic model of short distance GPS mobile positioning are discussed in the OTF (on-the-flying) way; then the general normal equation to suit programming in computer is given in order that these four classes of observable may be selected in the way whether let the scale factors equal to zero. In addition, it is clarified that the OTF way is equivalent to the single epoch way in the case that only two classes of precise codes are selected in precise mobile positioning. Last, it is clarified by an example that the given mathematical model is accurate and effective.

关 键 词：OTF方式 精密动态定位 权比因子 通用法方程式 

分 类 号：P228.42[天文地球—大地测量学与测量工程]