| 单频GPS动态相对定位的模糊度逼近/搜索解法 |
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| 引用本文： | 俞文伯,高国江,赵剡.单频GPS动态相对定位的模糊度逼近/搜索解法[J].北京航空航天大学学报,2002,28(2):242-244. |
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| 作者姓名： | 俞文伯 高国江 赵剡 |
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| 作者单位： | 北京航空航天大学,宇航学院,北京,100083 |
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| 摘 要： | 针对目前实时动态定位(RTK)中常用搜索解法可靠度不高的缺点,利用各历元诸双差方程所形成的法方程,对其进行解耦处理以便于实时计算.在此基础上综合了逼近、搜索两种解法各自的局部优势,构成了逼近/搜索的联合解法.实际测试表明,该算法在单频全球定位系统(GPS)载波相位差分的动态相对定位过程中,用2～3min的时间即可可靠地在航解算出整周模糊度.
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| 关 键 词： | 卫星导航 相对测量 快速定位法 实时动态定位 |
| 文章编号： | 1001-5965(2002)02-0242-03 |
| 收稿时间： | 2001-06-28 |
| 修稿时间： | 2001年6月28日 |
An Approach-Search Algorithm Used in GPS Single Frequency Kinematic Relative Positioning |
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| YU Wen-bo,GAO Guo-jiang,ZHAO Yan.An Approach-Search Algorithm Used in GPS Single Frequency Kinematic Relative Positioning[J].Journal of Beijing University of Aeronautics and Astronautics,2002,28(2):242-244. |
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| Authors: | YU Wen-bo GAO Guo-jiang ZHAO Yan |
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| Institution: | Beijing University of Aeronautics and Astronautics, School of Astronautics |
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| Abstract: | To compensate the low reliability of normal search algorithm of Real Time Kinematic positioning(RTK) technology, an approach-search algorithm is proposed. This algorithm is based on a set of double difference equation of each epoch. By decomposing these equations, this real-time algorithm can integrate the merits of approaching and searching methods, and so can be used to solve the problem of ambiguity resolution in difference kinematic relative positioning with GPS single frequency carrier phase. Real test shows that the ambiguity can be accurately determined in 2~3 minutes with the present algorithm. |
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| Keywords: | satellite navigation relative measurement quick astrofix real time kinematics (RTK) |
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