摘要
作者利用复信号分析方法分离出地质雷达信号的瞬时振幅、瞬时相位、瞬时频率等参数 ,通过一维数值模拟对其进行多参数分析 ,并进行了工程应用。模拟实验和工程实测表明 ,地质雷达瞬时相位有助于提取深部弱信号 ;瞬时振幅与瞬时频率为进一步进行土层和岩石特性方面的研究提供了依据 ;
Complex signal analysis is applied to separate instantaneous spectra, instantaneous phase and instantaneous frequency from Ground Penetrating Radar(GPR)signal. It is suggested that weak signal can be more easily distinguished by instantaneous phase and underground media characteristics might be inferred by instantaneous spectra and frequency according to data modeling and site tests. The complex signal analysis also proves to be one of the best way to improve accuracy to interpret GPR images.
出处
《物探化探计算技术》
CAS
CSCD
2000年第2期108-112,共5页
Computing Techniques For Geophysical and Geochemical Exploration
关键词
地质雷达
信号处理
复信号分析
图像解释
ground penetrating radar(GPR)
signal processing
complex signal analysis
image interpreting
