速度反演 meaning in English
velocity inversion
Examples
- Ultrasonic rays with short travel time and image meshes passed by more rays were given heavy weights
然后通过混凝土速度反演的数值模拟和模型试验，对反演算法进行了比较研究。 - Furthermore , numerical simulations and experiments of inversion of velocity and attenuation are made . results indicate that inversion of ultrasonic can reflect the position , size and property of defects right
本文对超声波速度反演进行了数值模拟和试验研究，结果表明速度反演能正确反映混凝土内部缺陷的位置、大小和超声波速度性质。 - 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。 - Compared with straight ray tracing , inversion of bending ray tracing is better when data of test are accurate . on the other hand , natural weight is introduced and numerical simulations and experiments of wlm on inversion of velocity and attenuation are also made , which show that wlm , with resistance of noises and convergence of iteration , may get good re - construction images
本文引入了物理意义明确的自然权，对基于自然权的加权阻尼最小二乘反演算法( wlm )在速度反演、衰减反演中进行了数值模拟和试验研究，结果表明wlm均能获得良好的重建图像，迭代收敛，抗噪能力强。 - In addition , concrete inner defects are identified based on two different physical parameter , velocity and attenuation , which will greatly increase precision and reliability . in conclusion , the developed ct technique of ultrasonic for concrete non - destructive test is of great significance in both theory and practice
在利用速度反演得到混凝土声速和衰减反演得到混凝土吸收系数的基础上，本文根据声速和衰减两种不同的物理参量判别混凝土内部缺陷，可大大提高缺陷判别的精度和可靠度。