1) offset gather
偏移距道集
1.
Equivalence of angle gather and offset gather in representation differential semblance optimization.;
角道集与偏移距道集在表象微分优化中的等价性
2) zero off-set gather
零偏移距道集
3) Common-offset gather
共偏移距道集
1.
During the migration velocity analysis based on wave equation, the wave equation prestack depth migration on common-offset gathers is very important, because it can provide the migrated image (the common image point gather on different offsets) that can be interpreted in geology.
共偏移距道集波动方程叠前深度偏移的 Green函数法 。
4) common offset gathers
共偏移距道集
1.
For the sake of improving S/N, we put forward anew method F-X domain prediction filtering in common offset gathers for noiseelimination using prediction.
但是高分辨率要以高信噪比为前提,为了提高地震剖面的信噪比,我们在F-X域预测滤波去噪技术的基础上提出了共偏移距道集F-X预测滤波方法。
5) common-range gather
同偏移距道集
6) offset domain common image gathers
偏移距域共成像点道集
1.
In order to probe the relationships between wave equation offset domain common image gathers (ODCIGs)/angle domain common image gathers (ADCIGs) with migration velocity, we quantitatively derive the changes of ODCIGs and ADCIGs along with migration velocity on the assumption of uniform velocity medium with a horizontal reflector.
为了得到波动方程偏移距域共成像点道集(ODCIGs)和角度域共成像点道集(ADCIGs)与偏移速度的关系,在匀速单层水平反射情况下,对ODCIGs和ADCIGs随偏移速度的变化进行了定量的推导,得到偏移速度偏小时ODCIGs与半偏移距成双曲关系,反之成椭圆关系;结合深度聚焦分析,得到偏移速度偏大时,ADCIGs中视入射角大于真入射角,反之,小于真入射角;在速度偏小时,ADCIGs上剩余时差(RMO)与视入射角的正切值成椭圆关系,反之成双曲关系。
补充资料：道-道间寻道时间
道-道间寻道时间(single track seek)：
指磁头从一磁道移动至另一磁道的时间，单位为毫秒(ms)。
指磁头从一磁道移动至另一磁道的时间，单位为毫秒(ms)。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条