自适应噪声消除器在地电场观测数据处理中的应用

Abstract

Abstract: At the same observation site, telluric observation will be interfered by the electric current in measuring the apparent resistivity, which appears in the waveform of square impulse, especially when the sampling rate is 1 sampling/second in telluric observation. The interference can not be easily removed. This paper introduced how to use the so-called “Adaptive Self Noise Canceller” in the digital signal processing to deal with telluric data with this kind of interference. The numerical modeling and actual data processing indicate that this method is promising in getting rid of the interference with greatly increasing the signal-to-noise ratio in the telluric data analysis.

Key words: Telluric field, Apparent resistivity, Interference from current, Adaptive Self Noise Canceller

CLC Number:

P315.61

WANG Lan-wei, ZHAO Jia-liu, PANG Li-na. The application of adaptive self noise canceller on telluric data process[J]. EARTHQUAKE, 2006, 26(1): 87-92.

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The application of adaptive self noise canceller on telluric data process

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