| 基于GPS单频接收机的精密单点定位研究 |
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| 引用本文： | 郝明,王庆良.基于GPS单频接收机的精密单点定位研究[J].测绘科学,2010,35(2):123-124,129. |
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| 作者姓名： | 郝明 王庆良 |
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| 作者单位： | 中国地震局地质研究所地震动力学国家重点实验室,北京,100029;中国地震局第二监测中心,西安,710054;中国地震局第二监测中心,西安,710054 |
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| 摘 要： | 介绍了利用单频GPS接收机进行精密单点定位的数学模型及解算方案,并采用选权拟合法得到比较准确的状态参数初值及其方差-协方差,加快了卡尔曼滤波的收敛。算例结果表明,利用精密卫星星历及卫星钟改正数并采用单频观测值,半个小时后的定位精度可达1~2分米的水平。
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| 关 键 词： | 单频 精密单点定位 选权拟合法 |
Study of precise point positioning using GPS single-frequency receiver |
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| HAO Ming,WANG Qing-liang.Study of precise point positioning using GPS single-frequency receiver[J].Science of Surveying and Mapping,2010,35(2):123-124,129. |
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| Authors: | HAO Ming WANG Qing-liang |
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| Abstract: | The mathematical model and solution scheme of precise point positioning based on single-frequency GPS receiver were introduced.The selecting weight fitting method was employed to determine the initial state parameters and the corresponding variancecovariance components,and the convergence of Kalman filter was improved.The numerical experiments demonstrated that using singlefrequency observations along with precise ephemerides and satellite clock,could achieve decimeter precision. |
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| Keywords: | single-frequency precise point positioning selecting weight fitting method |
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