| 差分GPS载波相位整周模糊度快速解算方法 |
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| 引用本文： | 朱志宇,刘维亭,张冰.差分GPS载波相位整周模糊度快速解算方法[J].测绘科学,2005,30(3):54-57. |
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| 作者姓名： | 朱志宇 刘维亭 张冰 |
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| 作者单位： | 江苏科技大学,电子信息学院,江苏,镇江,212003;南京航空航天大学,自动化学院,南京,210016;江苏科技大学,电子信息学院,江苏,镇江,212003 |
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| 摘 要： | 本文提出了一种整周模糊度的快速求解方法,将差分GPS的测量值分配到主要测量值集合和次要测量值集合中,用主要集合中的相位测量值限定简约搜索空间,而次要集合中的相位测量值用来验证候选集合。利用已知的基线长度的约束条件,对搜索空间进行了简约,提高了求解整周模糊度的速度,同时,通过Cholesky分解提高搜索效率。
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| 关 键 词： | 整周模糊度 全球定位系统(GPS) 高斯整数变换 Cholesky分解 |
| 文章编号： | 1009-2307(2005)03-0054-04 |
| 修稿时间： | 2004年7月20日 |
Fast carrier phase integer ambiguity resolution for differential GPS |
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| ZHU Zhi-yu,LIU Wei-ting,ZHANG Bing.Fast carrier phase integer ambiguity resolution for differential GPS[J].Science of Surveying and Mapping,2005,30(3):54-57. |
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| Authors: | ZHU Zhi-yu LIU Wei-ting ZHANG Bing |
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| Abstract: | A fast method of integer ambiguity resolution is proposed in this paper,in which all the GPS measurements are divided into main set and subordination set.The phase measurements in the main set is applied to reduce search space,while that in subordination set to validate candidate value of integer ambiguity resolution.Adopting constraint condition that length of base line is known,search space is reduced,as a result,the speed to solve integer ambiguity resolution is improved,at last,Cholesky Decompose is employed to enhance solution efficiency. |
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| Keywords: | global positioning system (GPS) integer ambiguity resolution ambiguity search space cholesky decompose |
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