Application of Modified Periodogram Algorithm on GPS TEC for Earthquakes

A V V  Pavani; D  Tejasri; R  Revathi; K  S  Ramesh; S  Koteswara Rao and S  Lakshminarayana

doi:10.17485/ijst/2016/v9i17/93117

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Application of Modified Periodogram Algorithm on GPS TEC for Earthquakes

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Indian Journal of Science and Technology

DOI: 10.17485/ijst/2016/v9i17/93117

Year: 2016, Volume: 9, Issue: 17, Pages: 1-5

Original Article

Application of Modified Periodogram Algorithm on GPS TEC for Earthquakes

A.V.V. Pavani^*, D. Tejasri2 , R. Revathi, K. S. Ramesh, S. Koteswara Rao and S. Lakshminarayana

Guntur, Andhra Pradesh, India; [email protected], [email protected], [email protected], [email protected], [email protected], [email protected].

*Author of Corresponding: A.V.V. Pavani Guntur, Andhra Pradesh, India; [email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Background/Objectives: Ionospheric total electron content perturbations generated by earthquake occurred in Indonesia are analyzed. Methods/Statistical analysis: The vertical total electron content data on the earthquake day is detrended such that it can be analyzed using statistical signal processing algorithms. Modified periodogram algorithm is implemented on both the disturbed and undisturbed vertical total electron content data. Findings: From the power spectral densities of modified periodogram, the time of occurrence of earthquake is observed and it is noted that it is matching with the actual time of occurrence of event considered. Application/Improvement: This analysis aids in developing an early warning system for earthquakes.

Keywords: Atmospheric Sciences, Earthquakes, Global Positioning System, Statistical Signal Processing