摘要
提出一种新的快速整周模糊度求解方法 ,新方法当需要增加观测值时 ,不需要使用新旧观测值一并计算 ,而仅需要补充由新观测值引起的残差变化量 ,减少计算时间 ,节省存贮空间 ,并通过构造极值条件和采用整数高斯变换措施 ,从而提高了整周模糊度的搜索速度。试验研究表明 ,新方法比其它方法求解速度更快 ,更有效。
A new method for GPS fast ambiguity resolution is proposed, which has following advantages:(1)if current observation data is not enough to determine the integer ambiguity,more observations are needed to re initialize,the new method does not require to renew the calculation with all data,only needs supplement the changes of sum of squares of residuals due to new data added,so it shortens the calculating time,saves computer memory;(2)the new method ,searching on integer ambiguity,uses the integer Gauss transformation and constructs extremum conditions to accelerate the searching speed. Experiments shows that the newly developed method has faster solving speed and more efficient than the existing methods.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2000年第6期95-98,共4页
Journal of the China Railway Society
基金
中国科学院动力大地测量学开放研究实验室资助!(4980 4 0 0 1 )
