[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.4283/JMAG.2004.9.3.069

Noise Reduction of Geomagnetic Signals From Randomly Oriented Sensors

Song, Yong J. (Department of Physics, Ajou University)
Lee, Choong S. (Department of Physics, Ajou University)
Kim, Ki C. (Electronics and Telecommunications Research Institute)
Lim, Sun-Ho (LG Innotek Co., Ltd)
Kim, Duk-Yung (LG Innotek Co., Ltd)
Son, Dong-Hwan (Naval Weapon System R&D Center)
Kim, Dae Y. (Naval Weapon System R&D Center)

Publication Information

Journal of Magnetics / v.9, no.3, 2004 , pp. 69-74 More about this Journal

Abstract

A method of processing signals of unaligned geomagnetic sensors placed on the seabed is presented. The offset drifts of the fluxgate sensors are processed by polynomial fitting and the orientations of the sensor axes are found by minimizing the noise power using wavelet analysis. The noise power was reduced by 9.1 dB by processing the components of magnetic field separately using subtraction filter, polynomial fitting and wavelet analysis.

Keywords

geomagnetic signal; noise reduction; subtraction filter; fluxgate sensor;

Citations & Related Records

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