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| Keywords | |
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full tensor gravity gradient |
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frequency spectrum analysis |
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low-pass filter |
| Authors | |
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QIAO Zhong-Kun |
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GENG Mei-Xia |
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DAI Wei-Ming |
| PubMed | |
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Article by Qiao, Z. K. |
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Article by Geng, M. X. |
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Article by Dai, W. M. |
Noise filtering of horizontal components of full tensor gravity gradient data
QIAO Zhong-Kun, GENG Mei-Xia, DAI Wei-Ming
College of Geo-exploration Science and Technology��Jilin University��Changchun 130026��China
In order to obtain a better method for noise filtering ��this paper establishes a spherical model�� adding Gauss white noise into the three horizontal components of full tensor gravity gradient data��and using FFT and PSD to analyse spectrum of the three component which are added noise (Vxx1��Vxy1��Vyy1)�� According to the results of spectral analysis�� we design Butterworth low pass filter and Gaussian low pass filter to filter the false data�� and achieve a good result and use complex model to verify the effect of filtering��