| 差分GPS的对流层伪距残差的计算机模拟 |
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| 引用本文： | 庄铭杰,彭国祥.差分GPS的对流层伪距残差的计算机模拟[J].中国航海,2005(1):38-42,73. |
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| 作者姓名： | 庄铭杰 彭国祥 |
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| 作者单位： | 集美大学,福建,厦门,361021 |
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| 基金项目： | 福建省教育厅科研资助项目(JA03130) |
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| 摘 要： | 简单回顾了对流层中GPS信号传播延迟的原理。介绍了2种常见的校正模型,Hopfield模型和Black模型。定义了差分GPS(DGPS)的对流层伪距残差的概念,并建立了数学模型。用计算机对DGPS的对流层伪距残差进行仿真。仿真结果表明用户和基准台之间距离增大和低卫星仰角都将使伪距残差增大,气象因素和高程对伪距残差也有影响。
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| 关 键 词： | 水路运输 DGPS 研究 对流层 伪距残余误差 基准台 用户 仿真 |
| 文章编号： | 1000-4653(2005)01-0038-05 |
Computer Simulation of DGPS Troposphere Pseudo-Range Remaining Error |
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| ZHUANG Ming-jie,PENG Guo-xiang.Computer Simulation of DGPS Troposphere Pseudo-Range Remaining Error[J].Navigation of China,2005(1):38-42,73. |
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| Authors: | ZHUANG Ming-jie PENG Guo-xiang |
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| Abstract: | The principle that GPS signals propagation delayed in troposphere is reviewed in the paper. Two common correcting models, Hopfield model and Black model, are introduced. Then, the troposphere pseudo-range remaining error (TDRE) of differential GPS (DGPS) is defined, its mathematical model is constructed, and the computer simulation of TDRE of DGPS is carried out. The simulation results indicate that the pseudo-range remaining errors will be increased with the distance between base-station and GPS user and in the case of low satellite elevation. |
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| Keywords: | Waterway transportation DGPS Research Troposphere Pseudo-range remaining error Base station User Simulation |
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