| GPS连续观测资料小波变换质量评价探讨 |
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| 引用本文： | 张风霜,杨国华. GPS连续观测资料小波变换质量评价探讨[J]. 测绘科学, 2011, 36(6): 10-12 |
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| 作者姓名： | 张风霜 杨国华 |
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| 作者单位： | 中国地震局第一监测中心,天津,300180 |
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| 基金项目： | 中国地震局2010年度震情跟踪合同制定向工作任务和第一监测中心青年人才培养基金 |
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| 摘 要： | 小波变换在处理GPS噪声的应用中有较好的效果.本文研究利用GPS连续观测资料的小波变换去噪结果进行质量评价,通过对分析资料采用不同的小波基函数、对同一小波基函数下的小波变换各尺度结果进行比较,并结合实例分析得出了初步的结论:对GPS连续观测资料进行小波变换去噪,采用sym6、sym8和coif4小波,分解尺度在4～6之...
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| 关 键 词： | GPS连续观测 小波变换 质量评价 去噪 |
Discussion about quality evaluation on wavelet transformation of GPS continuous observation data |
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| ZHANG Feng-shuang,YANG Guo-hua. Discussion about quality evaluation on wavelet transformation of GPS continuous observation data[J]. Science of Surveying and Mapping, 2011, 36(6): 10-12 |
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| Authors: | ZHANG Feng-shuang YANG Guo-hua |
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| Affiliation: | (First Crustal Monitoring and Application Center,CEA,Tianjin 300180,China) |
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| Abstract: | Wavelet transform has good effects in the application of processing GPS noise.The paper studied on the evaluation quality of wavelet transform de-noising of GPS continuous data,by using different radical functions for wavelet transform of analysis data and analyzing each scale result by wavelet transform under the same radical function,and finally obtained a primary conclusion that it would be appropriate and reasonable to use sym6,sym8,and coif4 wavelet and 4~6 decomposition level for the wavelet transform de-noising of GPS continuous data.. |
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| Keywords: | GPS continuous observation wavelet transform quality evaluation de-noising |
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