Application of Generalized S Transform with Lowpass Filtering to Layer Recognition of Ground Penetrating Radar
详细信息
- 责任者：Zhang Xianwu (Institute of Electronics ; Chinese Academy of Sciences ; Beijing 100190 ; China) ; Gao Yunze
- 刊名：Chinese Journal of Geophysics
- 出版年：2013
- 卷期：56(1)
- 关键词：地质雷达 ; geological radar ; 滤波 ; filters
- 页码：p.309-316
- 图表：illus., 28 refs.
- 分类号：1600
- issnNo：ISSN0001-5733
- isbnNo：CN11-2074/P
摘要
Compared with other methods for analyzing time-varying signal,the S transform has many particular merits.But the window function of the S transform is fixed,which limits its application to signal analysis and processing.To solve this problem,this study improves and generalizes the S transform,introduces the modification parameters into the window function of the S transform and integrates the low-pass filtering function into it.And a generalized S transform is proposed.Temporal resolution and frequency resolution of the generalized S transform are regulated via adjusting the parameters.Consequently,the applicability of the generalized S transform is strongly enhanced.This work adopts the generalized S transform to conduct a layer-recognition study using ground penetrating radar data and achieves desirable results.
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