GPR data analysis in time-frequency domain

Author

Lai, Wai-Lok ; Poon, Chi-Sun

Author_Institution

Dept. of Civil & Struct. Eng., Hong Kong Polytech. Univ., Hong Kong, China

fYear

2012

fDate

4-8 June 2012

Firstpage

362

Lastpage

366

Abstract

Most GPR applications focus on object identifications and multi-dimensional mapping by extensive signal processing tasks in time domain. This approach suffers from the loss of signal originality that characterizes the desired material properties. This paper attempts to introduce another method of signal analysis based on short time-fourier transform (STFT) in time-frequency domain which aims to restore the information of material properties based on spatial frequency distributions. Examples of two scenarios: a lawn embedded with plastic irrigation pipes and a concrete wall embedded with a steel bar matrix, are given in this paper to introduce this novel method of GPR signal analysis.

Keywords

Fourier transforms; ground penetrating radar; radar signal processing; time-frequency analysis; GPR application; GPR data analysis; GPR signal analysis; STFT; concrete wall; material properties; multidimensional mapping; object identification; plastic irrigation pipe; short time-Fourier transform; signal loss; signal processing task; spatial frequency distribution; steel bar matrix; time-frequency domain; Concrete; Dielectrics; Ground penetrating radar; Steel; Time domain analysis; Time frequency analysis; GPR; short time-fourier transform;

fLanguage

English

Publisher

ieee

Conference_Titel

Ground Penetrating Radar (GPR), 2012 14th International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4673-2662-9

Type

conf

DOI

10.1109/ICGPR.2012.6254891

Filename

6254891