| 水下DGPS定位系统可定位范围分析 |
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| 引用本文： | 朱祥娥,蔡艳辉,王权.水下DGPS定位系统可定位范围分析[J].全球定位系统,2008,33(4). |
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| 作者姓名： | 朱祥娥 蔡艳辉 王权 |
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| 作者单位： | 1. 中国测绘科学研究院,北京,100039
2. 国家测绘局,北京,100830 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 水下DGPS定位系统是我国近些年研制的一套水声定位系统,该系统经过了在三亚、抚仙湖等地区的试验,得到了较高的定位精度.利用Argo浮标剖面数据,将海水视为水平分层均匀介质,计算声速剖面,根据Snell定律从理论上推出了理想情况下水下导航定位系统中浮标的可布设范围和水下DGPS定位系统浮标阵的可定位范围.
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| 关 键 词： | 水下定位 Argo浮标 水声声速 定位范围 |
The Tolerably Position Extension of Underwater DGPS System |
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| ZHU Xiang-e,CAI Yan-hui,WANG Quan.The Tolerably Position Extension of Underwater DGPS System[J].Gnss World of China,2008,33(4). |
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| Authors: | ZHU Xiang-e CAI Yan-hui WANG Quan |
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| Institution: | ZHU Xiang-e1,CAI Yan-hui1,WANG Quan2(1.Chinese Academy of Surveying & Mapping,Beijing 100039,2.State Bureau of Surveying , Mapping,Beijing 100830) |
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| Abstract: | Underwater DGPS positioning system is a set of hydro-acoustic positioning system developed by China in recent years.The system was experimented in SanYa and FuXianhu etc,and has achieved a high precision.Supposing the seawater as horizontal stratified homogeneous medium,this paper computes the water velocity profile with Argo surveying data.According to Snell rule it deduces the tolerably emplaced area of buoys in DGPS system.and the tolerably position extension of some network which composed of positioning... |
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| Keywords: | Underwater positioning Argo float sound speed positioning area |
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