METHOD OF BEAM FORMING FOR EXTRACTING SEISMICWAVE INFORMATION BY USING GPS ARRAY DATA
Lu Yaying 1) ; Wu Jicang 1) ; Meng Guojie 2) ; and Hu Congwei 1)
1) Department of Surveying and Geo-informatics, Tongji University, Shanghai 2000922) Institute of Earthquake Science, CEA, Beijing 100036
Abstract A method of beam forming for processing highrate GPS data and extracting seismic wave information is introduced. Simulated seismic waves of each GPS station are synthesized by adding simulated Rayleigh waves into vertical component of GPS coordinates series.The capacity of beam forming to extract seismic wave information of different SNR (signal to noise ratio) is analyzed. The results indicate that, the correct value of slowness cannot be obtained when the SNR is 1.5, while it is close to the theoretical value when the SNR ratio is 3.
Key words ：
beam forming
GPS
highrate data
seismic wave
slowness
Received: 01 January 1900
Corresponding Authors:
Lu Yaying
Cite this article:
Lu Yaying ,Wu Jicang ,Meng Guojie et al. METHOD OF BEAM FORMING FOR EXTRACTING SEISMICWAVE INFORMATION BY USING GPS ARRAY DATA[J]. , 2010, 30(5): 68-72.
Lu Yaying ,Wu Jicang ,Meng Guojie et al. METHOD OF BEAM FORMING FOR EXTRACTING SEISMICWAVE INFORMATION BY USING GPS ARRAY DATA[J]. jgg, 2010, 30(5): 68-72.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2010/V30/I5/68
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