| 一种附约束的单频单历元GPS双差相位解算方法 |
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| 引用本文： | 韩保民,欧吉坤.一种附约束的单频单历元GPS双差相位解算方法[J].测绘学报,2002,31(4):300-304. |
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| 作者姓名： | 韩保民 欧吉坤 |
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| 作者单位： | 中国科学院测量与地球物理研究所,动力大地测量学开放研究实验室,湖北,武汉,430077 |
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| 基金项目： | 国家自然科学基金，中国科学院知识创新工程项目，49874006，KZCX2-106，， |
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| 摘 要： | 在各类变形观测中，存在着2次观测的变形值不大及各种变形方向和大小可以比较精确预测等特点，可以把这些特征作为约束条件，对GPS单历元相位观测方程进行求解。基于以上几点，提出了一种含约束条件的单频单历元GPS相位求解算法和简单实用的模糊度搜索方法，本方法据观测值直接估计模糊度参数，并根据求出的模糊度估值进行搜索，还分析了最优解的获得和检验方法，最后用2个实例说明了该法的有效性和实用性。
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| 关 键 词： | 变形监测 单历元 GPS单频接收机 模糊度 相位求解算法 全球定位系统 |
| 文章编号： | 1001-1595(2002)04-0300-05 |
A GPS Single Epoch Phase Processing Algorithm with Constraints for Single-frequency Receiver |
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| HAN Bao min,OU Ji kun.A GPS Single Epoch Phase Processing Algorithm with Constraints for Single-frequency Receiver[J].Acta Geodaetica et Cartographica Sinica,2002,31(4):300-304. |
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| Authors: | HAN Bao min OU Ji kun |
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| Abstract: | There exist some special aspects such as the deformations of points between two continuous surveys which are comparatively small, the deformation directions and values of points can be relatively precisely predicted in advance in various deformation monitoring. These aspects can be taken as special constraints in GPS single epoch phase processing algorithm. Based on the above features, a new GPS single epoch phase processing algorithm with some constraints for single frequency receiver and a simple and effective ambiguity search method are brought forward. The main feature of this method is that the ambiguity parameters can be estimated directly, and the ambiguity search algorithm is also based on the ambiguity estimators. Meanwhile, the derivation of best solution and test method are analyzed as well. At last, the effectiveness and practicability of this algorithm are illustrated with two examples. |
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| Keywords: | deformation monitoring single epoch GPS single frequency receiver ambiguity phase processing algorithm constraints |
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