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| 引用本文： | 吴继忠.GPS�۲����ݵ�С����ֵ������[J].大地测量与地球动力学,2009,29(4):79-82. |
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| 作者姓名： | 吴继忠 |
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| 作者单位： | 南京工业大学土木工程学院,南京,210009;武汉大学卫星导航定位技术研究中心,武汉,430079 |
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| 摘 要： | ????С???任??GPS????????????????????????????????????????????????????????????????????????????????С???????????????????????????????????????????????????????????????????????н????????????????????????????????????????4????????????й?????????Ч??????
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| 关 键 词： | GPS С???任 ????????? ??????? С????????? |
DE-NOISING OF GPS OBSERVATIONS WITH WAVELET THRESHOLD METHOD |
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| Wu Jizhong.DE-NOISING OF GPS OBSERVATIONS WITH WAVELET THRESHOLD METHOD[J].Journal of Geodesy and Geodynamics,2009,29(4):79-82. |
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| Authors: | Wu Jizhong |
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| Institution: | Wu Jizhong1,2)1)College of Civil Engineering,Nanjing University of Technology,Nanjing 2100092)Research Center of GNSS,Wuhan University,Wuhan 430079 |
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| Abstract: | Wavelet transform is usually used to reduce the high frequency noise of carrier phase GPS double differences observation.The computation outputs with soft thresholding and hard thresholding as well as several threshold selection rules are compared.The experiments indicate that ambiguity solutions become more reliable and the coordinates more precise after wavelet threshold de-noising,while different threshold selection rules generate different results.In general,the soft thresholding with the universal thre... |
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| Keywords: | GPS |
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