【摘要】 时频分析是分析非平稳信号的有效方法,将一维的时域信号和频域信号映射到二维时频平面上,获得信号的时频分布,清晰地描述了信号频率随时间变化的关系。通过模拟信号的广义S变换,分析信号的时频分布特征,并建立正演模型,运用广义S变换提取正演模型的单频剖面。利用基于广义S变换的时频分析方法,提取某工程项目实际地震资料的单频剖面,从而有效识别地质薄层。更多还原

【Abstract】 Time-frequency analysis is a very effective way to analyze non-stationary signal,which maps the time domain signal and frequency domain signal to 2D time-frequency zones.So it could get the distribution of time-frequency and describe the relation between frequency and time of signals.Analyzing the characteristics of time-frequency distribution through generalized S transform of analog signal,we can establish a model and extract single-frequency section.Using time-frequency analysis technology based on generalized S transform,we can extract single-frequency section of the real seismic data and recognize geological thin-layer effectively.更多还原