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地震波的频率成分与地震剖面的信噪比和分辨率密切相关。本文介绍的频率时间谱扫描技术，可对地震波的频率进行时间域的连续分析和频率域的离散分析，能准确地提供地震资料的频率信息，用于地震资料处理可明显改善地震剖面的信噪比和分辨率。该方法在胜利油田的DX、LP等6个地区及南海的W121区块的应用中，均取得了比较满意的效果。
The frequency components of seismic waves are closely related to the signal-to-noise ratio and resolution of seismic sections. The time-frequency spectrum scanning technique introduced in this paper can analyze the frequency of the seismic wave in time domain and discretely in the frequency domain and accurately provide the frequency information of the seismic data. The seismic data processing can obviously improve the signal-to-noise of the seismic profile Ratio and resolution. The method has achieved satisfactory results in the application of 6 areas such as DX and LP in Shengli Oilfield and W121 block in the South China Sea.