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本文旨在研究提高地震勘探法分辨率的可能性。为了剖视辐射体,已在震源方向平面上精确地求得了波场延拓问题的正则化解。本文对与正则化参数有关的正则化误差进行了评价;对波场必要的测量精度及与理想分辨率有关的孔径大小作了初步评价。原则上指出了超越常规分辨率极限是可能的。本文提出了一种建设性算法,这种算法在孔径很大和波场测量精度很高时,至少对线性辐射体来说,可用来获得超高分辨率。
This article aims to study the possibility of increasing the resolution of seismic exploration methods. In order to cut off the radiator, the regularization solution of the wavefield continuation problem has been accurately obtained in the source direction plane. In this paper, the regularization error related to the regularization parameter is evaluated. The necessary measurement accuracy of the wave field and the aperture size related to the ideal resolution are preliminarily evaluated. It is in principle pointed out that it is possible to exceed the normal resolution limit. This paper presents a constructive algorithm that can be used to achieve ultra-high resolution, at least for linear radiators, when the aperture is large and the accuracy of the wavefield measurements is high.