| BDS三频模糊度解算及精度检验 |
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| 引用本文： | 李业坤,王胜利,陈西斌.BDS三频模糊度解算及精度检验[J].测绘与空间地理信息,2015(3):75-79,82. |
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| 作者姓名： | 李业坤 王胜利 陈西斌 |
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| 作者单位： | 1. 佛山市城市规划勘测设计研究院,广东佛山,528000;2. 江苏建筑职业技术学院,江苏徐州,221116;3. 中国矿业大学环境与测绘学院，江苏徐州22116 |
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| 基金项目： | 国家自然科学基金青年项目 |
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| 摘 要： | 北斗卫星提供3种频率载波信号,极大地推动了利用载波对用户位置和速度信息进行高精度计算方法研究。本文重点研究基于北斗卫星三频信号的载波相位模糊度解算CIR方法,通过使用函数极限的原理推导载波组合,为算法提供了理论基础;分析每一步的误差传递,选取优秀的伪距组合、相位组合,并处理数据验证算法的可行性。在短基线向量前提下,双差中忽略大气延迟的影响,验证了本文提出的几种载波组合的计算模糊度的可行性。
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| 关 键 词： | 北斗 模糊度 三频 CIR |
BDS Tri -Frequency Ambiguity Resolutionand Accuracy Test |
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| LI Ye-kun,WANG Sheng-li,CHEN Xi-bin.BDS Tri -Frequency Ambiguity Resolutionand Accuracy Test[J].Geomatics & Spatial Information Technology,2015(3):75-79,82. |
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| Authors: | LI Ye-kun WANG Sheng-li CHEN Xi-bin |
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| Institution: | LI Ye-kun;WANG Sheng-li;CHEN Xi-bin;Institute of Foshan Urban Planning and Surveying;Jiangsu Building of Career Technical College;School of Environment Science and Spatial Informatics,China University of Mining and Technology; |
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| Abstract: | BDS provide tri-frequency carrier singal, greatly promote the use of carrier position and speed information for high accura-cy calculation method research.This article focuses on an advanced tri-frequency signal on the basis of the Beidou satellite carrier Integer ambiguity resolution CIR.Using the principle of limit of a function solves carrier combinations.In the algorithm of the CIR are analysised to calculate error propagation at each step.Then selecting the better combination of pseudorange and phase, confirming its feasibility with the results.And in a short baseline vector, ionospheric effect is ignored in double difference model, to verify the feasi-bility of ambiguity resolution with carrier combination. |
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| Keywords: | compass ambiguity tri-frequency CIR |
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