| 地基伪卫星单历元三频组合逐级模糊度解算方法 |
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| 引用本文： | 匡宇龙,王玲,乐乐.地基伪卫星单历元三频组合逐级模糊度解算方法[J].全球定位系统,2020,45(2):44-48. |
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| 作者姓名： | 匡宇龙 王玲 乐乐 |
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| 作者单位： | 湖南师范大学信息科学与工程学院,湖南长沙410081;空军航空维修技术学院,湖南长沙410124 |
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| 基金项目： | 湖南省自然科学基金(2019JJ0030)。 |
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| 摘 要： | 为解决地基定位系统因基站固定导致几何多样性差,难以使用LAMBDA求解整周模糊度的问题.利用自差分双向时间同步原理,将双向观测值构建出消除钟差的公式.消去了时间误差的特性,将其作为双差测量值的替代,与三频模糊度解算(TCAR)算法相结合求解整周模糊度.在伪卫星平台的实验结果表明,能够实现快速单历元整周模糊度解算.
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| 关 键 词： | 整周模糊度 多频 双向时间同步 地基定位系统 假设检验 |
Single epoch three carrier ambiguity resolution for ground base positioning system |
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| KUANG Yulong,WANG Ling,YUE Le.Single epoch three carrier ambiguity resolution for ground base positioning system[J].Gnss World of China,2020,45(2):44-48. |
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| Authors: | KUANG Yulong WANG Ling YUE Le |
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| Institution: | 1.College of Information Science and Engineering, Hunan Normal University, Changsha 410081, China2.Air Force Aviation Maintenance Technical College, Changsha 410124, China |
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| Abstract: | Ground Base Positioning System has poor geometric diversity due to fixed base station position,and that will cause problems in using LAMBDA to solve integer ambiguity.To solve this problem,self-differential two-way ranging technique has been proposed by using the two-way measurement to build a formula to eliminate clock errors.As it got rid of the time errors,we use the self-differential two-way ranging measurement as an alternative to double difference measurement,combining with three-carrier ambiguity resolution algorithm to solve the ambiguity.Experimental result on a pseudolite platform shows that this method can achieve fast single-epoch integer ambiguity resolution. |
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| Keywords: | ambiguity resolution multi-frequency two-way ranging technique ground based positioning hypothetic check |
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