1) scattered wavefield
散射波场
1.
In order to raise the imaging accuracy of complex layer and the stability of wavefield continuation operator, the scattered wavefield formula was improved.
为了进一步提高复杂地层的成像精度和波场延拓算子的稳定性,对散射波场的计算公式作了改进。
2.
In addition,in order to raise the image accuracy of complex layer and the stability of wavefield extrapolation formula, the scattered wavefield formula is improved.
此外,为进一步提高复杂地层的成像精度和波场延拓算子的稳定性,对散射波场的计算公式作了改进。
2) scattered wave field
散射波场
1.
This method assumes the seismic wave field to be composed of an incident wave field and a scattered wave field and the scattered wave field to be made of the deep scattering layer and the shallow scattering layer.
假设近地表垂直点力产生的地震波场由入射波场和散射波场组成。
2.
The seismic wave field, which is produced by vertical point forces in the near surface, is supposed to consist of incident wave field and scattered wave field, and the scattered wave field is assumed to be a function of incident wave field and acoustic impedance difference.
假设近地表垂直点力产生的地震波场由入射波场和散射波场组成,散射波场是入射波场与波阻抗差函数的函数。
3) wave field scattering
波场散射
4) scattered wave field characteristic
散射波场特征
1.
Especially the deficiencies of the research work in scattered wave numerical simulation and its applications were summed up:①geometry is unseemliness;②lack of study systematically in the scattered wave field characteristic;③lack of study systematically in the scattered wave field recognize and its i.
并介绍了作者关于地震散射波场特征数值模拟研究的初步成果。
5) backwordscattered field
反向散射波场
6) 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。
补充资料：自治场多重散射波Xα方法
分子式：
CAS号：
性质：用于分子计算的Xα方程。在Xα方程基础上采用松饼罐头(muffin-tin)近似，将分子分为三个区：原子内区I，原子间区II和原子外区III，进而对其势能采取近似，然后根据Xα方程分别对三个区域利用边界条件建立久期方程并求解，从而得到分子轨道和能级。该方法计算简单，用过渡态概念计算的结果和能谱数据接近，而且适于原子簇的计算。但是其计算精度比从头算差，对共轭分子计算也不理想。
CAS号：
性质：用于分子计算的Xα方程。在Xα方程基础上采用松饼罐头(muffin-tin)近似，将分子分为三个区：原子内区I，原子间区II和原子外区III，进而对其势能采取近似，然后根据Xα方程分别对三个区域利用边界条件建立久期方程并求解，从而得到分子轨道和能级。该方法计算简单，用过渡态概念计算的结果和能谱数据接近，而且适于原子簇的计算。但是其计算精度比从头算差，对共轭分子计算也不理想。
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参考词条