Indonesia Conference Directory


<< Back

Application of Empirical Mode Decomposition (EMD) Filtering at Magnetotelluric Time-Series Data
Nugroho Syarif Setiawan[1], Amien Widodo[1], Wien Lestari[1], Firman Syaifuddin[1], Ahmad Zarkasyi[2], Dwa Desa Warnana[1] and Djuan Pandu Gya Nur Rochman[1]

[1] Institut Teknologi Sepuluh Nopember
[2] Pusat Sumber Daya Mineral, Batubara dan panas Bumi


Abstract

Noise that recorded at magnetoelluric data acquisition make the recorded data quality not good enough so the information that obtained after data processing might be not correct or not suit with the subsurface condition. Several characters that we can see at the noisy magnetotelluric data are the spiky shaped and non-stationarity time-series curve. This non-stationarity character can-t be handled by Fourier Transformation process. In this research used Empirical Mode Decomposition (EMD) method in original of Huang as filtering method in order to overcome the non-stationarity. This method decomposed the signal into group of oscillation mode called Intrinsic Mode Decomposition (IMF). One of the best IMF chosen as the filtering result by spectrum analysis in frequency domain. From the filtering result obtained that the time-series curve getting smoother and the non-stationarity character compressed. From this research concluded that EMD filtering can be implemented at magnetotelluric data processing and can emphasized the effect caused by noise.

Keywords: Empirical Mode Decomposition (EMD), Intrinsic Mode Function (IMF), Magnetotelluric

Topic: Electromagnetic Methods

Link: https://ifory.id/abstract/HRYm2xhT6MnB

Conference: International Conference on Electromagnetism, Rock Magnetism and Magnetic Material (ICER3M 2019)

Plain Format | Corresponding Author (Nugroho Syarif Setiawan)

Featured Events

<< Swipe >>
<< Swipe >>

Embed Logo

If your conference is listed in our system, please put our logo somewhere in your website. Simply copy-paste the HTML code below to your website (ask your web admin):

<a target="_blank" href="https://ifory.id"><img src="https://ifory.id/ifory.png" title="Ifory - Indonesia Conference Directory" width="150" height="" border="0"></a>

Site Stats