An Inverse Q-Filtering for GPR Signals Processing Based on Wavefield downward Continuation

摘要：

An inverse Q-filtering algorithm for ground penetrating radar (GPR) signals processing based on the theory of wavefield downward continuation is introduced in the paper. It is implemented by using a constant Q model. Inverse Q-filtering is accomplished in the following steps: GPR signals are transformed from a time domain to a time-frequency domain using generalized S-Transform whose time frequency resolution is adjustable, and the time-varying frequency spectrum are extracted, and inverse Q filtering is accomplished in the frequency domain. Then it is back to time domain to attain the GPR signal. The results show that the amplitude attenuation of GPR has been compensated, and the wavelet dispersion is removed to some extents, and the resolution of the GPR is enhanced.

关键词： inverse Q filtering ground penetrating radar wavefield downward continuation generalized S-Transform time-vary spectrum dispersion

作者: Li-li Zhang Si-xin Liu Jun-jun Wu Zhi-xian Zhang

作者单位: College of GeoExploration Science and Technology, Jilin University, Changchun 130026, China Shenyang College of GeoExploration Science and Technology, Jilin University, Changchun 130026, China Shenyang Institute of Aeronautical Engineering, Shenyang 110034, China

会议类型: 国际会议

会议名称: 2010 International Conference on Image Analysis and Signal Processing(2010 图像分析与信号处理国际会议 IASP 10)

会议地点: 厦门

会议语种:英文

页码: 333-337

在线出版日期: 2010-04-12（万方平台首次上网日期，不代表论文的发表时间）