| GPS定向中利用码相位和载波相位组合建模的研究 |
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| 引用本文： | 侯春青,巨涛,张爽娜. GPS定向中利用码相位和载波相位组合建模的研究[J]. 电子设计工程, 2011, 19(6): 98-100 |
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| 作者姓名： | 侯春青 巨涛 张爽娜 |
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| 作者单位： | 1. 航天恒星科技有限公司,北京,100086
2. 北京北斗星通导航技术股份有限公司,北京,100085 |
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| 摘 要： | 传统GPS定向多采用载波观测量建立观测模型,但其在单历元情况下存在秩亏问题。为避免此问题,文章提出将载波相位和码相位加权后的线性组合用于建立观测模型,在新的GPS定向观测模型中,采用消元处理得到整周模糊度浮点解。实验结果表明该模型可以使整周模糊度浮点解的精度在5周以内,能辅助LAMBDA算法快速确定整周模糊度。
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| 关 键 词： | GPS定向技术 GPS定向模型 载波观测量 码观测量 组合建模 |
Module design with code and carrier observation for GPS orientation determination |
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| HOU Chun-qing,JU Tao,ZHANG Shuang-na. Module design with code and carrier observation for GPS orientation determination[J]. Electronic Design Engineering, 2011, 19(6): 98-100 |
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| Authors: | HOU Chun-qing JU Tao ZHANG Shuang-na |
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| Affiliation: | 1(1.Department of Navigation Space Star Technology Co.,Ltd,Beijing 100086,China; 2.Department of Navigation Beijing BDStar Navigation Co.,Ltd,Beijing 100085,China) |
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| Abstract: | GPS carrier observation matrix rank is deficient for single epoch that exists on conventional GPS orientation determination models.The mixed module with both carrier observation and code observation is a way to get a float ambiguity solution module,using weighting,linear plus elimination process.The results of this study indicate the precision of float ambiguity solutions obtained by the mixed module is in 5 cycles,which can quickly help LAMBDA algorithm estimate correct integer ambiguity resolution. |
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| Keywords: | GPS orientation determination technology module in GPS orientation determination carrier observation code observation mixed module |
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