1) stratigraphic deconvolution
地层反滤波
1.
This article describes a new method for stratigraphic deconvolution that is based on the frequency decay experienced at different VSP depth levels in a well.
地层反滤波算法就是为了消除地层对子波的影响,利用VSP中的直达下行波推算出每个地层滤波算子,计算出各个地层滤波算子的反算子,然后利用这些反算子恢复出地表记录中损失掉的高频成分,减弱地层滤波对波形的影响,增加地表记录的频率成分和波形的准确度。
2) earth-filtering effect
地层滤波效应
3) inverse Q filtering
反Q滤波
1.
Estimation of Q and inverse Q filtering for prestack reflected PP-and converted PS-waves
叠前纵波和转换波地震资料Q值提取及反Q滤波(英文)
2.
Ai- ming at these problems,the inverse Q filtering method was used in the 3D seismic data to improve the resolution.
针对这一问题,利用能同时进行振幅校正和相位畸变校正的反Q滤波方法对该区的三维地震资料进行了提高分辨率处理。
4) inverse filtering
反滤波
1.
Using inverse filtering to restore degraded images;
反滤波对图像退化的复原研究与实现
2.
To implement high precision and on line measurement of linear motion errors, a novel error separation technique(EST) method named quadratic phase shift three point method was proposed, which is based on the data reconstruction and inverse filtering.
通过对 3个传感器的测量数据按照二次相移原则进行数据重组 ,在数据处理的首次操作时消除直线形状误差的影响 ,从而在反滤波基础上可以先行分离出直行运动误差的平移分量和转动分量 。
3.
A novel technique for quadratic phase shift three - point method based on data reconstruction and inverse filtering is proposed in this paper, through which the spindle radial motion error can be separated and gained firstly, and the on - line measurement of motion error can be implemented successfully.
提出了一种基于数据重组和反滤波的二次相移三点法圆度误差分离技术,可以先行分离出主轴的 回转运动误差,从而能够实现运动误差的在线检测。
5) inverse Q filter
反Q滤波
1.
Improve the seismic resolution with a stable and efficient inverse Q filter;
用稳定高效的反Q滤波技术提高地震资料分辨率
6) feedback filtering
反馈滤波
1.
Multi-object TT&C technology based on spread-spectrum adaptive feedback filtering algorithm;
基于扩频反馈滤波算法的多目标测控技术
补充资料:滤波反投影或卷积反投影
滤波反投影或卷积反投影
影像学术语。当代影像学设备进行影像重建的数学方法。在直接用扫描后所获得的投影轨迹剖面图反投影重建出的CT图像中,无法避免角度卷入条纹伪影(angular aliasing streaks)造成的模糊和失真。这种现象与被扫描层面的空间频率中高频信息的损失有关。使用一种精密的数学方法去除这种模糊。称为“展现”(unfolding)或去卷积(deconvolution),即在反投影前使用一种数学的“滤器”或卷积函数对原始数据进行修正,然后再进行反投影。两步数学处理过程合称为滤波(修正后)反投影或卷积(后)反投影。这种方法的优点是处理过程简单,速度快,所得图像逼真、清晰。
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