摘要
阐述了小波变换的基本理论,给出了小波变换在探地雷达方面的应用实例.认为小波变换时频局域性好,是分析非平稳信号的有效工具之一.实例分析表明,小波方法在城市地下管线探测信号去除噪音分析处理方面具有优异性能,能有效提高探地雷达探测地下管线的精度.
Wavelet transform is a good tool to analyze nonstationary signals because of its good processing capability in the time and frequency domains. In this paper, the basic theory of wavelet transform is described. Wavelet transform has specific property for processing the signals of testing underground pipe, which can improve the precision of prospecting underground pipe effectively.
出处
《地球物理学进展》
CSCD
2003年第3期493-496,共4页
Progress in Geophysics
基金
吉林省科技攻关项目"非开挖铺管技术与设备研究"资助.
关键词
信号处理
小波分析
非开挖施工
探地雷达
管线探测
signal processing, wavelet transform, non-excavation construction, ground penetrating radar, exploration of pipe and line
