CAJ | 학술논문

煤田地震勘探方法是以水平叠加技术为中心的，在分辨率要求甚高的采区地震勘探中，水平叠加剖面的分辨率无法达到勘探精度的要求.针对这一问题，介绍了小波变换的基本原理及其时间一频率局域化性质.通过理论模型研究，证明小波变换可以同时提高地震资料的信噪比和分辨率，从而进一步提高勘探精度.将小波变换技术用于实际地震资料的处理，在分解后的高尺度剖面上，能有效地保护地震信号中的高频成分，提高地震剖面的分辨率，从而能较准确地识别小断层与计算煤层厚度.
매전지진감탐방법시이수평첩가기술위중심적，재분변솔요구심고적채구지진감탐중，수평첩가부면적분변솔무법체도감탐정도적요구.침대저일문제，개소료소파변환적기본원리급기시간일빈솔국역화성질.통과이론모형연구，증명소파변환가이동시제고지진자료적신조비화분변솔，종이진일보제고감탐정도.장소파변환기술용우실제지진자료적처리，재분해후적고척도부면상，능유효지보호지진신호중적고빈성분，제고지진부면적분변솔，종이능교준학지식별소단층여계산매층후도.
The stacking technique is quite important in coal seismic surveying. But for the seismic surveyingin a mining area, the resolution of stacking sections can not satisfy the requirement of exploration precision.In this paper, the fundamentals and time-frequency property of wavelet transform were introduced. Theoret-ical model research has proved that the wavelet transform can enhance the signal/noise ratio (S/N) and theresolution of seismic signals, and hence further improve the exploration precision. The application of wavelettransform in seismic data processing proves that it can improve the high-frequency components and resolutionof seismic signals, identify small faults, and calculate the thickness of coal seams.