物探与化探2016，Vol.40Issue(6)：1227-1231,5.DOI:10.11720/wtyht.2016.6.27
短时傅里叶变换在GPR数据解释中的应用
A study of application of short-time Fourier transform to GPR data interpretation
摘要
Abstract
Wavelet transform,empirical mode decomposition and singular value decomposition are effective means to highlight the deep anomaly and improve the signal-to-noise ratio of ground penetrating radar ( GPR) data. This paper proposes a fast short-time Fourier transform technique for interpreting ground penetrating radar (GPR) noise signal.The frequency spectrum differences between transmit signal and noise signal are used to improve signal-to-noise ratio of radar data. It is verified by using a numerical example. The method and the wavelet transform as well as the advantage of empirical mode decomposition method are analyzed in detail respectively from sin-gle signal frequency energy difference, frequency equivalent distribution difference, and other aspects. The results show that the short time Fourier analysis technology can achieve rapid interpretation of GPR data and,for the ground penetrating radar data inversion ima-ging,it can provide more precise constraints.关键词
探地雷达/短时傅里叶/频率差异/主频等值分布/快速解译Key words
ground penetrating radar/short time Fourier transform/difference of frequency/frequency equivalent distribution/fast inter-pretation分类
天文与地球科学引用本文复制引用
戴前伟,吴铠均,张彬..短时傅里叶变换在GPR数据解释中的应用[J].物探与化探,2016,40(6):1227-1231,5.基金项目
国家自然科学基金项目(41374118) （41374118）
