| 应用选权拟合法建立单历元伪距和载波相位双差模型 |
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| 引用本文： | 闻永俊,王爱生,冯遵德,宋维轲.应用选权拟合法建立单历元伪距和载波相位双差模型[J].测绘科学,2012,37(6):32-33,42. |
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| 作者姓名： | 闻永俊 王爱生 冯遵德 宋维轲 |
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| 作者单位： | 1. 徐州师范大学测绘学院,江苏徐州,221116
2. 江苏地质基桩工程公司,江苏镇江,212021 |
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| 基金项目： | 江苏省高校自然科学研究基金 |
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| 摘 要： | 本文根据选权拟合法的一个重要性质:只要被约束的那部分参数估值无偏,其余的参数估值也无偏;该性质说明利用选权拟合进行参数估计的结果是条件无偏的。这个不同于一般正则化解的重要特性可以建立单历元伪距和载波相位双差模型,并通过实例验证了该方法的可行性。
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| 关 键 词： | 选权拟合法 单历元伪距 载波相位双差模型 |
Establishing single epoch pseudorange and carrier phase double difference model based on fitting method of weights |
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| WEN Yong-jun
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WANG Ai-sheng
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FENG Zun-de
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SONG Wei-ke.Establishing single epoch pseudorange and carrier phase double difference model based on fitting method of weights[J].Science of Surveying and Mapping,2012,37(6):32-33,42. |
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| Authors: | WEN Yong-jun WANG Ai-sheng FENG Zun-de SONG Wei-ke |
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| Institution: | ②(①School of Geodesy and Geomatic,Xuzhou Normal University,Jiangsu Xuzhou 221116,China;②Jiangsu Geological Pile Engineering Company,Jiangsu Zhenjiang 212021,China) |
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| Abstract: | The study is according to the quality of the fitting method of selecting parameter weights which means that the estimations of the other parameters are unbiased as long as the restrained parameters are unbiased.In this paper,this property implied that the estimation of the fitting method of parameter weights is conditional unbiased.This property which is different from that of the classical regularizations was used in GPS fast positioning for the resolution of ambiguities.Finally the calculation results of an example validated that this measurement method was feasible. |
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| Keywords: | fitting method by selection of parameter weights single epoch pseudorange carrier phase double difference model |
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