| 精密单点定位的数学模型选择 |
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| 引用本文： | 鲍建宽,陈伟荣,高成发.精密单点定位的数学模型选择[J].黑龙江工程学院学报,2013,27(2):1-4,7. |
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| 作者姓名： | 鲍建宽 陈伟荣 高成发 |
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| 作者单位： | 1. 黑龙江工程学院测绘工程学院,黑龙江哈尔滨,150050
2. 东南大学测绘工程系,江苏南京,210096 |
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| 基金项目： | 黑龙江省教育厅科学技术研究项目（12511467） |
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| 摘 要： | GPS精密单点定位技术常用的数学模型是非差模型.在分析常用的3种模型基础上,引入观测方程的差分模型.通过理论分析与实例比较,得到各种差分方法在精度与实时性方面的优缺点,并根据比较结果设计出一种新的差分模型,即二次差——一次差组合模型.试验表明,对比非差模型,新的差分模型的计算收敛速度明显加快,提高幅度约30％.
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| 关 键 词： | GPS精密单点定位 数学模型 差分模型 |
Selecting the mathematic models for precise point positioning |
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| BAO Jian-kuan
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CHEN Wei-rong
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GAO Cheng-fa.Selecting the mathematic models for precise point positioning[J].Journal of Heilongjiang Institute of Technology,2013,27(2):1-4,7. |
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| Authors: | BAO Jian-kuan CHEN Wei-rong GAO Cheng-fa |
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| Affiliation: | 1. College of Mapping and Surveying Engineering, Heilongjiang Insitute of Technology, Harbin 150050,China. 2. Dept. of Survey Engineering, Southeast University, Nanjing 210096, China) |
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| Abstract: | In GPS precise point positioning, non-difference model is commonly used. Three common models are analyzed. And on this basis, difference models of observations are advanced. Through theoretical analysis and comparison, advantages and disadvantages of each model have been found. Based on comparison result, a new difference model is designed, which is combined by double-difference and single- difference solutions. The empirical results show that this new model obviously accelerates the convergence time rather than non-difference model, which can be increased up to 30%. |
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| Keywords: | GPS precise point positioning mathematical model difference model |
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