| 利用无几何模型求解GPS三频模糊度的成功率分析 |
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| 引用本文： | 常志巧,刘利,郭睿,刘雁雨.利用无几何模型求解GPS三频模糊度的成功率分析[J].大地测量与地球动力学,2011,31(4):119-122. |
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| 作者姓名： | 常志巧 刘利 郭睿 刘雁雨 |
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| 作者单位： | 北京环球信息应用开发中心,北京,100094 |
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| 基金项目： | 武汉大学地球空间环境与大地测量教育部重点实验室测绘基础研究基金(10-014) |
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| 摘 要： | 利用无几何模型求解GPS模糊度实数解是不以基线分量为未知数的线性模型,码观测量几乎直接用于确定模糊度,即使在较短的观测时间内,也不会出现设计矩阵复共线性,对模糊度求解具有明显优势.利用Kronecker乘积导出了利用无几何模型求解三频模糊度及其协方差矩阵的表达式,分析得到该协方差矩阵只与伪距噪声和相位噪声之间的结构以及...
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| 关 键 词： | GPS 无几何模型 三频模糊度求解 模糊度降相关 成功率 |
ANALYSIS OF SUCESS RATE FOR GPS THREE-CARRIER AMBIGUITY RESOLUTION USING GEOMETRY FREE MODEL |
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| Chang Zhiqiao,Liu Li,Guo Rui,Liu Yanyu.ANALYSIS OF SUCESS RATE FOR GPS THREE-CARRIER AMBIGUITY RESOLUTION USING GEOMETRY FREE MODEL[J].Journal of Geodesy and Geodynamics,2011,31(4):119-122. |
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| Authors: | Chang Zhiqiao Liu Li Guo Rui Liu Yanyu |
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| Institution: | Chang Zhiqiao,Liu Li,Guo Rui and Liu Yanyu(Beijing Global Information Application and Development Center,Beijing 100094) |
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| Abstract: | Geometry free model for resolving GPS ambiguity is a linear model which does not take baseline components as unknown parameters.For the Geometry free model,the code observation is almost used in ambiguity resolution directly,and although the observation time span is very short,the design matrix will not have characteristics of multicollinearity,so that the geometry free model is very useful in ambiguity resolution.In this paper,the expressions for triple frequency float ambiguities and covariance matrix for... |
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| Keywords: | GPS geometry free model three-carrier ambiguity resolutions ambiguity decorrelation success rate |
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