| 基于四川GPS观测网络的分米级差分GPS接收机 |
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| 引用本文： | 陈聪,程奕,顾铁.基于四川GPS观测网络的分米级差分GPS接收机[J].四川地震,2011(1):15-19. |
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| 作者姓名： | 陈聪 程奕 顾铁 |
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| 作者单位： | 四川省地震局,四川,成都,610041 |
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| 基金项目： | 2008年地震系统行业专项基金 |
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| 摘 要： | 基于四川GPS观测网络,本文提出采用低成本GPS-OEM板设计分米级差分GPS接收机。介绍四川GPS观测网络的工作原理,应用GPS观测网络改正由GPS轨道误差、电离层、对流层和大气折射引起的误差,将高精度的差分信息通过GPRS发给流动站来提高接收机的定位精度;论证了差分GPS的定位原理;最后提出整个系统的设计方案,用Thales DG14L OEM板处理GPS天线接收到的卫星信息,同时对GPRS天线接收数据中心差分信号进行差分运算。单片机控制软件采用汇编语言和C语言来编写。系统的实验结果表明,差分GPS接收机应用效果好,定位精度高,最重要的是降低了接收机的成本。
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| 关 键 词： | GPS-OEM板 GPRS 单片机 差分GPS |
Development of Decimeter GPS Receiver Based on Sichuan GPS NET |
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| CHEN Cong,CHENG Yi,GU Tie.Development of Decimeter GPS Receiver Based on Sichuan GPS NET[J].Earthquake Research in Sichuan,2011(1):15-19. |
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| Authors: | CHEN Cong CHENG Yi GU Tie |
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| Institution: | CHEN Cong,CHENG Yi,GU Tie(Earthquake Administration of Sichuan Province,Sichuan Chengdu 610041,China) |
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| Abstract: | A design scheme is put forward using a cheap GPS-OEM board to develop a decimeter GPS receiver based on Sichuan GPS NET.Firstly positioning principle based on DGPS is explained and secondly the DGPS positioning principle is illustrated.Finally it brings forward the whole system scheme design.Software taking account for errors caused by satellite orbit,ionosphere,troposphere,and atmosphere refraction is discussed.In our design scheme the difference information with high positing precision is transmitted to r... |
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| Keywords: | GPRS |
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