Investigation of time-frequency analysis in GPR signal using HHT method

Author

Gan Lu ; Yang Lei

Author_Institution

Sch. of Electr. & Electron. Eng., Wuhan Polytech. Univ., Wuhan, China

fYear

2014

fDate

19-21 Sept. 2014

Firstpage

334

Lastpage

337

Abstract

The time-frequency analysis for GPR signal encounters two problems. The first one is because of the echo signal contains very high frequency component so the GPR system employs equivalent-time sampling, this will lead to that the frequency of received signal is not equal to the real signal. The second one is the non-linear and non-stationary feature of the GPR signal. In this paper, a method for time-frequency analysis based on HHT using in equivalent-time sampling GPR system is presented, and compared to the FFT and morlet wavelet on real GPR data sets. The experiment result proves the method an improvement in analysis.

Keywords

ground penetrating radar; radar signal processing; FFT wavelet; GPR data sets; GPR signal; GPR system; HHT method; echo signal; equivalent time sampling; high frequency component; morlet wavelet; time-frequency analysis; Delays; Ground penetrating radar; Signal resolution; Time series analysis; Time-frequency analysis; Wavelet analysis; Wavelet transforms; GPR; HHT; Hilbert spectrum; time-frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Network Infrastructure and Digital Content (IC-NIDC), 2014 4th IEEE International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4799-4736-2

Type

conf

DOI

10.1109/ICNIDC.2014.7000320

Filename

7000320