CAJ | 학술논문

为了克服地震子波的时变影响，避免复杂的时窗大小选取问题，使得谱模拟方法能更好地适应地震信号是平稳信号的假设条件，将改进S变换与谱模拟方法相结合，形成时频域谱模拟方法。在二维时频谱中进行谱模拟处理，该方法能够克服地震子波随地层深度变化的限制。理论模型及实际资料处理效果显示，时频域谱模拟方法能够有效提高地震分辨率，实现地震资料的高分辨处理。
위료극복지진자파적시변영향，피면복잡적시창대소선취문제，사득보모의방법능경호지괄응지진신호시평은신호적가설조건，장개진S변환여보모의방법상결합，형성시빈역보모의방법。재이유시빈보중진행보모의처리，해방법능구극복지진자파수지층심도변화적한제。이론모형급실제자료처리효과현시，시빈역보모의방법능구유효제고지진분변솔，실현지진자료적고분변처리。
Seismic wavelet is changed in the wake of stratigraphic depth access.The improved S transform in combination with spectral modeling method can overcome time-varying seismic wavelet and avoid the complex window dimension problem.Spectral modeling in the time-frequency domain can well adapt itself to the assumption condition in that the seismic data are smooth and serve as steady signals. Spectral modeling is processed in time-frequency domain,which can overcome time-varying wavelet and improve seismic resolution.A comparison of the effects of the seismic data processing shows that the method can effectively broaden the frequency band and improve seismic resolution.