| 基于非差与历元差分两种观测模型估计精密卫星钟差的方法比较 |
| |
| 引用本文： | 何明宪,李星星,李盼,郭斐.基于非差与历元差分两种观测模型估计精密卫星钟差的方法比较[J].大地测量与地球动力学,2011,31(1):95-99. |
| |
| 作者姓名： | 何明宪 李星星 李盼 郭斐 |
| |
| 作者单位： | 1)长江航道测量中心，武汉 430010;2)武汉大学测绘学院，武汉 430079 |
| |
| 基金项目： | 国家自然科学基金(40874017); 国家863计划项目(2006AA12Z325); 创新研究群体科学基金(40721001); 武汉市晨光计划项目(200850731375) |
| |
| 摘 要： | 研究了非差与历元差分两种观测模型估计精密卫星钟差的方法,评价了分别利用两类观测模型估钟的特点.通过实际算例分析了两种观测模型估钟的处理速度与精度.计算结果表明:基于非差观测模型估计卫星钟差精度高、观测信息没有损失、可靠性高、可以实现模糊度固定,但由于未知参数多,解算速度较慢,且需要经过一段时间的收敛才能达到所需精度;而...
|
| 关 键 词： | 非差模型 历元差分模型 精密卫星钟差估计 估钟精度 解算速度 |
COMPARISON AND ANALYSIS OF ESTIMATIONS OF PRECISE SATELLITE CLOCK ERROR BASED ON NON-DIFFERENCE MODEL AND EPOCH DIFFERENTIAL MODEL |
| |
| He Mingxian,Li Xingxing,Li Pan,Guo Fei.COMPARISON AND ANALYSIS OF ESTIMATIONS OF PRECISE SATELLITE CLOCK ERROR BASED ON NON-DIFFERENCE MODEL AND EPOCH DIFFERENTIAL MODEL[J].Journal of Geodesy and Geodynamics,2011,31(1):95-99. |
| |
| Authors: | He Mingxian Li Xingxing Li Pan Guo Fei |
| |
| Institution: | He Mingxian1),Li Xingxing2),Li Pan2) and Guo Fei2)(1)Changjiang Waterway Surveying Center,Wuhan 4300102)School of Geodesy and Geomatic of Wuhan University,Wuhan 430079) |
| |
| Abstract: | The estimations of precise satellite clock difference with non-difference model and the epoch differential model were studied,and the characteristics of the two models were compared through analyzing the computing speed and precision.Test results show that the estimate based on zero-differential model has high precision and high reliability,more observation information can be used,and the ambiguity fixing also can be realized,but it needs more unknown parameters,the computing speed is slow,and the high resu... |
| |
| Keywords: | non-difference model epoch difference model precise satellite clock difference estimation clock estimating precision computing speed |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《大地测量与地球动力学》浏览原始摘要信息 |
| 点击此处可从《大地测量与地球动力学》下载免费的PDF全文 |
