| Receiver Function Estimated by Wiener Filtering |
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| 作者姓名： | Wu Qingju Tian Xiaobo Zhang Nailing Li Weiping Zeng Rongsheng |
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| 作者单位： | InstituteofGeophysics,ChinaSeismologicalBureau,Beijing100081,China |
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| 基金项目： | ThisprojectwassponsoredbytheNationalScienceFoundationofChina(ContractNo .:4 9974 0 2 1) .ContributionNo .:0 2AC10 36 ,InstituteofGeophysicsofCSB |
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| 摘 要： | Wiener filtering is used to estimate receiver function in a time-domain. With the vertical component of 3-component teleseismic P waveform as the input of a Wiener filter, receiver function as the filter response, and radial and tangential components as the expected output, receiver function is estimated by minimizing the error between expected and actual outputs. Receiver function can be obtained by solving the Toeplitz equation using the Leviuson algorithm. The non-singularity of the Toeplitz equation ensures the stability of Wiener Deconvolution. Both synthetic and observational seismogram checks show that Wiener Deconvolution is an effective time-domain method to estimate receiver function from teleseismic P waveform.
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| 关 键 词： | 接受机 函数 估计 最佳化 运算法则 地震波 |
Receiver Function Estimated by Wiener Filtering |
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| Wu Qingju,Tian Xiaobo,Zhang Nailing,Li Weiping,Zeng Rongsheng.Receiver Function Estimated by Wiener Filtering[J].Earthquake Research in China,2003,17(4):386-391. |
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| Authors: | Wu Qingju Tian Xiaobo Zhang Nailing Li Weiping and Zeng Rongsheng |
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| Institution: | Institute of Geophysics, China Seismological Bureau, Beijing 100081,China;Institute of Geophysics, China Seismological Bureau, Beijing 100081,China;Institute of Geophysics, China Seismological Bureau, Beijing 100081,China;Institute of Geophysics, China Seismological Bureau, Beijing 100081,China;Institute of Geophysics, China Seismological Bureau, Beijing 100081,China |
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| Abstract: | Wiener filtering is used to estimate receiver function in a time_domain. With the vertical component of 3_component teleseismic P waveform as the input of a Wiener filter, receiver function as the filter response, and radial and tangential components as the expected output, receiver function is estimated by minimizing the error between expected and actual outputs. Receiver function can be obtained by solving the Toeplitz equation using the Levinson algorithm. The non_singularity of the Toeplitz equation ensures the stability of Wiener Deconvolution. Both synthetic and observational seismogram checks show that Wiener Deconvolution is an effective time_domain method to estimate receiver function from teleseismic P waveform. |
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| Keywords: | Receiver function Wiener filter Toeplitz equation Levinson algorithm |
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