【摘要】 在陆地地震资料处理中,消除面波的同时较好地保持体波通常是比较困难的。面波在地震记录上表现为一种很强的规则干扰波,具有振幅强、频率低的特征。三维地震资料的十字交叉排列道集内,面波的分布呈现锥形,因此利用三维锥形滤波技术能够压制面波,突出有效信号。但三维锥形滤波的应用效果与观测系统有关,有时在十字交叉排列上的炮线方向炮点是稀疏的,对于这种观测系统,应用锥形滤波的效果又将如何呢?尝试从三维锥形滤波在稀疏十字交叉排列道集中的实际应用效果来分析其适用性和有效性。十字交叉排列的稀疏性会影响去噪的保真度,同时会产生空间假频。更多还原

【Abstract】 During land seismic data processing,it is more difficulty to simultaneously not only remove surface wave but also keep body wave better.In seismic recording,surface wave appears a kind of the strongest and regular interruption wave,which is characterized by strong amplitude and low frequency.However,within crossing array trace gather of 3D seismic data,the distribution of surface wave appears a cone in shape.So,to utilize 3D cone filtering can remove surface wave and make effective signal prominent.But its application effect is related to observation system.Sometimes shot points in shot line arranged at crossing array are sparse.For this system,is the application result good or bad? In this paper,both adaptability and effective of cone filtering are analyzed based on real application.Sparse array will not only affect the fidelity of denoising but also generate the spatial aliasing.更多还原