We reported the main progress made in China in recent years of the study of ultrasonic tissue characterization-propagation velocity, attenuation, scattering and nonlinearity parameter, etc.
本文报道了近年来我国在生物组织超声特性——传播速度、衰减、吸收、反射、散射和非线性声参量方面的研究进展情况。
The scattering parameter expression of two port properties of impedance Z (in series connection) and admittance Y (in parallel connection) are discussed and their active RC model is presented.
讨论了用散射参数表达的串联阻抗Z和并联导纳Y的二端口特性，给出了它们的有源RC电路模型。
The optical back scattering characteristic of wake is a most important parameter for under water targets' scout , recognition and position.
尾流光的背向散射特性是水下航行体跟踪、识别和定位目标的重要参数。
The expression is written as a product of a N order Bessie function, containing parameter of the laser field, times thee-H scattering amplitude without leser fi…
这一振幅可简单表示为一个包含激光场参量的N阶贝塞尔函数乘以无激光场时电子—氧原子散射程函近似散射振幅。
Temperature of surfaces is an important physical parameter affecting metal target scattering characteristics.
目标的表面温度场是影响其激光散射特性的重要物理量。
Angular glint is an important parameter of radar target's back-scattering characteristics. It seriously reduces guidance accuracy of millimeter radar.
角闪烁是雷达目标后向散射特性的重要物理量，它能严重降低毫米波末制导雷达的导引精度。
This work can provide material in retrieving the parameter of atmospheric aerosol and modeling polarized properties of the atmospheric aerosol scattering radiation.
此项工作为反演大气参数、建立大气散射辐射偏振特性模型提供素材。
The index modulating function and chirp parameter distribution of the CFBG were synthesized by layer-peeling(LP) inverse scattering(IS) technique.
采用基于LP算法的IS光纤光栅设计技术，设计出CFBG的折射率调制函数和啁啾分布。
Based on our Mie-scattering lidar system and its technical parameter, the results of the overlap function are calculated in two ways, which is approximatetly equivalent.
文章介绍了离轴式米散射激光雷达系统的重叠因子，结合自行研制的一台激光雷达系统的技术参数，给出重叠因子的理论计算结果及实验反演结果。
Scattering phase function is a very important physical parameter in lidar detection of multiple scattering returns.
在激光雷达探测中，关于多次散射雷达回波的研究，散射相位函数是个非常重要的物理量。
Scattering phase function is a very important physical parameter in lidar detection of multiple scattering returns.
在激光雷达探测中，关于多次散射雷达回波的研究，散射相位函数是个非常重要的物理量。
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