| 基于小波分析的GPS双差观测数据消噪方法研究 |
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| 引用本文： | 陈向阳.基于小波分析的GPS双差观测数据消噪方法研究[J].测绘工程,2011,20(6):20-23. |
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| 作者姓名： | 陈向阳 |
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| 作者单位： | 南通职业大学建筑工程学院,江苏南通,226007 |
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| 摘 要： | 通过双差方法难以消除的多路径误差、接收机观测噪声等非模型化误差会大大影响GPS动态定位的精度.基于小波分析的理论,对GPS双差观测数据序列的消噪问题进行研究,结果表明,利用小波去噪原理,可有效地从受到强噪声干扰的GPS观测数据序列中提取变形特征信息,增强基线解算的有效性,提高GPS定位精度,解决传统技术对GPS动态监测...
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| 关 键 词： | GPS动态监测 消噪 小波变换 均方误差 信噪比 |
Study on the methods of GPS double-difference observation digital de-noising based on wavelet analysis |
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| CHEN Xiang-yang.Study on the methods of GPS double-difference observation digital de-noising based on wavelet analysis[J].Engineering of Surveying and Mapping,2011,20(6):20-23. |
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| Authors: | CHEN Xiang-yang |
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| Institution: | CHEN Xiang-yang (School of Architecture Engineering, Nantong Vocational College, Nantong 226007, |
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| Abstract: | The non-modeled errors, such as multi-path errors that cannot be removed by using double difference method and the noise caused by receivers while observing, will greatly affect the accuracy of GPS. The article deals with the de-noising of GPS double-differenced observation series based on the theo- ry of wavelet analysis. The results show that wavelet de-noising principle can effectively help extracting deformation features from GPS observation series polluted by strong noise, improve the validity of baseline processing, enhance the accuracy of GPS, and solve the limitation of GPS dynamic monitoring caused by traditional technology. |
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| Keywords: | GPS-based dynamic monitoring de-noising wavelet transform~ mean square error signal- noise-ratio |
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