| 精密单点定位中三种GPS卫星钟差预报模型的精度分析 |
| |
| 引用本文： | 徐维梅,卢秀山,郑作亚.精密单点定位中三种GPS卫星钟差预报模型的精度分析[J].测绘信息与工程,2009,34(5):8-10. |
| |
| 作者姓名： | 徐维梅 卢秀山 郑作亚 |
| |
| 作者单位： | 山东科技大学测绘科学与工程学院; |
| |
| 摘 要： | 分析了二次多项式、线性和灰色系统三种预报模型的原理和特点,采用了IGS精密星历和超快星历数据,选取了五颗钟差变化比较典型的卫星,实现了为期一天的卫星钟差预报。
|
| 关 键 词： | 卫星钟差 超快星历 灰色模型 二次多项式 线性模型 |
PRECISION OF THREE PREDICTION MODELS OF GPS SATELLITE CLOCK BIAS IN PRECISE POINT POSITIONING |
| |
| XU Weimei LU Xiushan ZHENG Zuoya.PRECISION OF THREE PREDICTION MODELS OF GPS SATELLITE CLOCK BIAS IN PRECISE POINT POSITIONING[J].Journal of Geomatics,2009,34(5):8-10. |
| |
| Authors: | XU Weimei LU Xiushan ZHENG Zuoya |
| |
| Institution: | XU Weimei LU Xiushan ZHENG Zuoya(Geomatics College,Sh,ong University of Science , Technology,579 Qianwangang Road,Qingdao 266510,China) |
| |
| Abstract: | The theory and characteristics of quadratic polynomial,linear model and gray model are analyzed.Using data of IGS precise ephemeris and ultra-rapid ephemeris,GPS satellite clock data from five satellites are chosen to predict the next day by the above three models.Results shows that the SCB predicted by linear model,gray model are better and more reliable than that of quadratic polynomial.But no matter which model is used to predict the SCB,the prediction accuracy has relationship with the change of the SCB... |
| |
| Keywords: | satellite clock bias ultra-rapid ephemeris gray model quadratic polynomial linear model |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
