CAJ | 학술논문

基于自由表面相关多次波压制（ SRME）方法的重要步骤之一是将匹配后的多次波从原始数据中减去。 L2范数多次波自适应减方法适用于有效波能量较小的情况，而L1范数多次波自适应减方法可适应有效波能量较强的情况。为获取更理想的自适应减方法，通过加权组合的方式建立使L2范数和L1范数多次波自适应减方法相结合的数学模型，并提出权系数的确定方法，然后结合模型数据和实际数据进行单道多次波压制处理，将处理结果与单独使用L2范数和L1范数自适应减方法所得结果进行对比，结果显示使两种范数加权组合的方法不仅能相对更好地压制多次波的能量，有效波的能量也保持较好。
기우자유표면상관다차파압제（ SRME）방법적중요보취지일시장필배후적다차파종원시수거중감거。 L2범수다차파자괄응감방법괄용우유효파능량교소적정황，이L1범수다차파자괄응감방법가괄응유효파능량교강적정황。위획취경이상적자괄응감방법，통과가권조합적방식건립사L2범수화L1범수다차파자괄응감방법상결합적수학모형，병제출권계수적학정방법，연후결합모형수거화실제수거진행단도다차파압제처리，장처리결과여단독사용L2범수화L1범수자괄응감방법소득결과진행대비，결과현시사량충범수가권조합적방법불부능상대경호지압제다차파적능량，유효파적능량야보지교호。
One of the most important steps of surface-related multiple elimination ( SRME ) is subtraction of the matching multiple waves from the original data. The L2-norm adaptive multiple subtraction method applies to the situation in which the energy of primary wave is very low;however, the L1-norm adaptive multiple subtraction method could apply to the situation in which the energy of prima-ry wave is strong. To obtain a more ideal method, the authors built a mathematical model to combine L2-norm and L1-norm adaptive multiple subtraction method by means of weighted array, and proposed the method for determination of weight coefficient. In addition, the method which combines synthetic data with field data was illustrated, and the results between using the hybrid L1/L2-norm and u-sing L2-norm and L1-norm alone were comparatively studied. The results show that using the hybridL1 /L2-norm adaptive multiple sub-traction method can not only suppress the multiple wave better, but also keep the primary wave well.