【摘要】 针对松辽盆地北部古龙断陷地震资料信噪比低、线性干扰强特点,提出应用线性Radon变换进行叠前线性噪音压制的预处理方法,Radon变换可在炮集和CMP道集上进行运算,算法简单,易于编程实现,其积分路径的特点适合线性噪音压制.模拟数据和实际地震资料应用结果表明,线性Radon变换法能够实现保幅的线性噪音压制,是叠前提高地震资料信噪比的实用方法,在地震资料预处理中具有应用前景.更多还原

【Abstract】 According to the characteristic of low S/N ratio seismic data and strong linear interference in north of Songliao basin Gulong fault depression,linear Radon transform approach is proposed for pre-stack linear noise suppression,Radon transform can be calculated on shot gathers and CMP trace gathers,the algorithm is simple,and also is easy to program,the property of linear Radon transform integral path is suitable to linear noise suppression.Linear noise suppression of theoretical simulation data and field seismic data demonstrate that the approach of Radon transform can preserve the primary’s amplitude during the course of linear noise suppression.The proposed linear noise suppression is practical which can improve seismic data S/N ratio,and it has broad application prospect in seismic data preprocessing.更多还原