1) scattering field model
散射声场模型
2) scattering model
声散射模型
1.
Review the ultrasonic scattering model for inhomogeneous soft tissue;
非均匀软组织声散射模型的研究概况
3) scattering acoustic field
散射声场
1.
A method to solve the scattering acoustic field of complex target was proposed for the near-field scattering characteristics of an underwater target in high-frequency.
针对水下目标高频近场散射特性,提出了一种求解水下复杂目标散射声场的方法。
4) fish school acoustic scattering model
鱼群声散射模型
1.
So, to have a deeper knowledge about fish school scattering problem and provide a theoretical support for the fish finder development, some efforts are made as follows:The single fish model is the base of fish school acoustic scattering model.
实际测量法和模型法是渔业声学应用中通常使用的两种主要方法,而鱼群声散射模型是渔业声学应用中的基础性环节。
5) near-field sound scattering
近场声散射
1.
On the basis of the theory of sound scattering of plane wave on elastic spherical shell, the calculation model of influences of near-field sound scattering by elastic spherical shell on direction finding of the vector hydrophone is established.
以平面波在弹性球壳上声散射理论为基础,建立了弹性球壳近场声散射对矢量水听器目标定向性能影响计算模型,分析了入射声波信号频率、入射角度以及矢量水听器安装位置对目标定向的影响。
6) Scattering model
散射模型
1.
A bistatic scattering model is presented based on perturbation theory and empirical formula in this paper, and the relations between the bistatic scattering strength and the frequency, the wind speed, the sound speed, the angles(the grazing angle, the scattering angle and the bistatic angle) are analyzed by means of computer simulatio.
建立了双基地声呐的海面散射模型,给出了海面散射强度的明确表达式。
2.
The model is applied to shallow water with a reverse thermocline and the curves of reverberation loss calculated by the model are compared when applying four different bottom scattering models.
在波束位移射线简正波理论的基础上推导了浅海混响模型,仿真比较了负跃层浅海情况四种海底散射模型对应的混响衰减曲线,结果表明海底散射模型对浅海混响的影响较为显著。
3.
In order to study bistatic ocean reverberation,three bistatic scattering models are developed.
海洋混响是影响双基地声呐性能的重要因素，本文依据双基地声呐的工作特点，对双基地声呐的混响特性进行了研究，建立了双基地散射模型，并进行仿真分析，得出有价值的结论。
补充资料：弹性散射和非弹性散射
| 弹性散射和非弹性散射 elastic scattering and inelastic scattering 使用粒子间碰撞来研究粒子的性质、相互作用和内部结构的两种情况。如果碰撞过程中两粒子间只有动能的交换，粒子类型、其内部运动状态和数目并无变化，则称为弹性散射或弹性碰撞。如果碰撞过程中除了有动能交换外，粒子的数目、类型和内部状态有所改变或转化为其他粒子，则称为非弹性散射或非弹性碰撞。 散射过程的研究对于了解许多物理现象具有很重要的意义。例如E.卢瑟福对a粒子被物质散射的研究，提出原子的有核模型；J.弗兰克和G.L.赫兹的电子与原子碰撞实验证实了N.玻尔的定态假设；建造高能加速器就是利用被加速粒子的散射过程来研究粒子的性质、相互作用和相互转化的规律。60年代末到70年代初利用高能轻子对质子和中子的深度非弹性散射的实验，发现质子和中子内部存在点状结构。 |
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