首页>
外国专利>
BUNYI SEISMIK YANG DAPAT MENYESUAIKAN DAN METODE UNTUK MELEMAHKAN GANGGUAN
BUNYI SEISMIK YANG DAPAT MENYESUAIKAN DAN METODE UNTUK MELEMAHKAN GANGGUAN
展开▼
机译:可调地震声音和产生干扰的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method relating to filtering coherent noise and interference from seismic data by constrained adaptive beamforming is described using a constraint design methodology which allows the imposition of an arbitrary predesigned quiescent response on the beamformer. The method also makes sure that the beamformer response in selected regions of the frequency-wavenumber space is entirely controlled by this quiescent response, hence ensuring signal preservation and robustness to perturbations. Built-in regularization brings an additional degree of robustness. Seismic signals with arbitrary spectral content in the frequency-wavenumber domain are preserved, while coherent noise and interference that is temporally and spatially nonstationary is adaptively filtered. The approach is applicable to attenuation of all types of coherent noise in seismic data including swell-noise, bulge-wave noise, ground-roll, air wave, seismic vessel and rig interference, etc. It is applicable to both linear or areal arrays.
展开▼