摘要
时频分析是近年发展起来的一种新的数学分析方法 ,该文首先分析了瑞雷波的频散特性和传统参数提取方法的缺陷 ,然后 ,利用时频分析的方法对实际资料进行了处理 ,结果表明 ,应用时频分析的方法可以极大的提高瑞雷波波速提取的稳定性和可靠性 。
The time-frequency analysis is one of developed new mathamatical analyses recently. The paper analysed frequency dispersion features of the Rayleigh wave and the weakness of conventional parameter extraction firstly.And then by using the time-frequency analysis we processed the real data. It is showed that the stability and reliability of Rayleigh wave velocity extraction will greatly increased from the time-frequency analysis and as a result the accuracy of ground-soil layering in the geotechnical engineering investigation can be enhanced.
出处
《勘察科学技术》
2003年第3期58-60,共3页
Site Investigation Science and Technology
关键词
时频分析
瑞雷波
数学分析方法
频散特性
岩土工程勘察
地基土
相速度
time-frequency analysis
Rayleigh wave
phase velocity
frequency dispersion feature
engineering investigation
