Research of Ambiguity Fast Resolution in GPS Orientation Determination

摘要：

　　Real-time GNSS orientation determination is valuable in many fields.In order to achieve high accuracy orientation with GNSS,the difference carrierphase observation must be employed.The carrier-phase measurements are affected by integer ambiguities,which must be resolved in order to take advantage of the high carrier-phase measurement precision.The information of the baseline length is exploited to reduce the correlation of ambiguities.So the size of integer ambiguities search space can be reduced.In order to make float ambiguity uncorrelated completely,float transformation matrix is constructed by Cholesky decomposition,so the speed of integer ambiguities searching can be improved.The experiment shows the method can improve the speed of integer ambiguities searching.

关键词： Integer ambiguity Decorrelation Searching space Fast orientation Baseline length

作者: Chen Liang Wu Jie

作者单位: College of Aerospace and Material Engineering, National University of Defense Technology,Changsha 410073, China

会议类型: 国际会议

会议名称: 2012 2nd International Conference on Computer Application and System Modeling(2012第二届计算机应用与系统建模国际会议)(ICCASM-2012)

会议地点: 沈阳

会议语种:英文

页码: 1356-1359

在线出版日期: 2012-07-27（万方平台首次上网日期，不代表论文的发表时间）