首页>
外国专利>
Method of source coding and harmonic cancellation for vibrational geophysical survey sources
Method of source coding and harmonic cancellation for vibrational geophysical survey sources
展开▼
机译:振动地球物理勘查源的源编码和谐波消除方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method is provided for significantly reducing the distortion and crossfeed from any selected order harmonic for any number of vibratory seismic sources operated concurrently, at the same time providing for separation of the signals from the different sources and for improving the signal-to-noise ratio. After determining the highest order harmonic likely to cause distortion, a number of sweeps of each source in each position is selected. This number depends upon the number of sources and the highest order harmonic to be suppressed. Initial phase angles for each sweep of each source are then selected to permit signal separation while suppressing harmonics up to and including that highest order harmonic.
展开▼