Heavy external mechanical interference noise separation technique and application
In recent years,the seismic exploration field acquisition area has covered more and more various large plants and factories,which brings serious exogenous mechanical interference to the field acquisition seismic records and significantly re-duces the signal-to-noise ratio of the original data.Conventional denoising methods either tend to harm the effective signal or have insufficient denoising strength to cope with heavy exogenous mechanical interference.In this paper,the heavy machinery interference is regarded as the aliasing single shot of normal single shot.The source aliasing data separation technique based on sparse inversion is used to effectively separate signal and noise by sparse transform and synchronous compression transform.Numerical simulations and the application of actual data from the YC work area in front of Longmen Mountain show that the method can effectively suppress heavy mechanical interference,and improve the signal-to-noise ratio for better imaging quality.
mechanical interferenceexogenous interferencenoise separationsparse inversionsignal-to-noise ratio
万方数据
维普
