| 实时GPS卫星坐标计算方法 |
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| 引用本文： | 雷波,李青,李雄. 实时GPS卫星坐标计算方法[J]. 计算机测量与控制, 2012, 20(2): 444-446 |
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| 作者姓名： | 雷波 李青 李雄 |
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| 作者单位： | 中国计量学院机电工程学院,浙江杭州,310018 |
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| 基金项目： | 国家自然科学基金科学仪器基础研究专款项目，国家自然科学基金面上项目 |
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| 摘 要： | 利用GPS星历计算卫星坐标是GPS实时差分定位工作中的首要部分,而其中还要对GPS接收机的原始数据解码才能得到卫星轨道参数;首先重点比较了几种不同厂商的单频GPS接收机的原始数据输出格式,以找出对不同类型GPS接收机原始数据解码方法的共同点;然后以Hemisphere公司的HC12板卡为例,通过对卫星的观测并实时计算出所观测到的卫星的坐标,与IGS精密星历比较误差在1m左右,计算结果与理论值相吻合,证明了该方法的正确性和有效性。
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| 关 键 词： | GPS 原始数据解析 导航电文 卫星坐标 |
Method of Real-time GPS Satellite Coordinates Calculation |
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| Lei Bo , Li Qing , Li Xiong. Method of Real-time GPS Satellite Coordinates Calculation[J]. Computer Measurement & Control, 2012, 20(2): 444-446 |
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| Authors: | Lei Bo Li Qing Li Xiong |
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| Affiliation: | (College of Mechanical and Electrical Engineering,China Jiliang University,Hangzhou 310018,China) |
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| Abstract: | Using the GPS satellite ephemeris to calculate satellite coordinate is the first part of the GPS real-time differential positioning work,and it must decode the raw data to get the satellite orbital parameters from the GPS receiver.First,compared several different companies’ raw data output format of Single-Frequency GPS receivers to find out the commonality of raw data decoding method for different types of GPS receivers.Then take the HC12 GPS OEM board of Hemisphere Company for example,calculate the coordinate of GPS satellite in real time,the error is about 1m by comparing with IGS precise ephemeris,the results of calculated and actual value agree well,then proving that this method is correct and effective. |
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| Keywords: | GPS raw data decoding navigation message satellite coordinate |
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