velocity n. 1.迅速;快速。 2.速度,速率。 3.周转率。 at a velocity of 100 miles per hour 用每小时一百英里的速度。 dart off with the velocity of a bird 像鸟一样迅速飞跑过去。 drag-free velocity无阻力飞速,真空飞速。 escape velocity(克服地球引力的)第二宇宙速度,逃逸速度。 final velocity (发射物的)终速。 initial [muzzle] velocity(发射物的)初速[腔口速度]。 uniform [variable] velocity匀[变]速。
Besides velocity inversion algorithm , the static correction in complex near - surface condition and irregular geometries may also impact the velocity modeling 影响速度模型精度的因素,除了速度反演算法之外,还包括复杂近地表条件下的静校正处理和观测系统的不规则性。
Basically , the cross - well seismic data processing has two steps : traveltime velocity inversion tomography for direct arrival and seismic reflection stack image 井间地震资料的处理主要包括两个最基本的内容,即直达波旅行时速度反演层析成像和地震反射波叠加成像。
Different algorithms were compared in the numerical simulation and model experiment of concrete velocity inversion the results showed that , compared with the least - square solutions and the damped least - square solutions , the damped and natural weighted least - square solutions reflected the inner defections of the tested object more reliably and exactly due to the usage of correct priori information , which benefited the suppression of noises and made the iterations of inverse stable and convergent 结果表明,相对于最小二乘法和阻尼最小二乘法,基于自然权的加权阻尼最小二乘算法,由于利用了正确的先验信息,不但使反演过程收敛,而且具有数值稳定、抗噪能力强的优点,其成像结果能真实有效地反映对象内部缺陷,因此更适用于混凝土的超声波速度反演。