OTF方式下短程GPS精密动态定位的数学模型

基金项目: 国家自然科学基金资助项目(40174005)

详细信息

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

1 Research Center of GPS, Wuhan University, 129 Luoyu Road, Wuhan 430079, China;
2 Presidential Secretariate, Wuhan University, Luojia Hill, Wuhan 430072, China

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,并通过实例试算验证了本文给出的数学模型是完全正确和有效的。
- OTF方式 /
- 精密动态定位 /
- 权比因子 /
- 通用法方程式
Abstract: 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.
- OTF way /
- precise mobile positioning /
- scale factor /
- general normal equation