In Kirchhoff migration, this is done by using the Kirchhoff integral representation of a field at a given point as a (weighted) superposition of waves propagating from adjacent points and times.
克希霍夫偏移中，反传播的处理就是把特定点的波场克希霍夫积分表达式作为从邻近点在邻近时间传播来的波的(加权)叠加。
Based on the principle of superposition of plane waves, the same expressions are derived as those based on Maxwell 'e field equations.
从平面波叠加原理出发，导出与从麦克斯韦方程组出发同样的表达式。
A multi step numerical inversion algorithm is presented for solving the problem based on the superposition technique of scattered waves.
基于散射波的合成技术，提出了数值求解这类问题的一个分离式三步反演算法。
It has been reported in many literatures that electric field solution is not cau sal when formed by a superposition of time harmonic waves in an attenuation medium.
许多文献认为，弱介质中电场解用时域谐波叠加形式分析时，无因果关系可循。
Sommerfeld's wave expansion theory demonstrates that a spherical wave can be expanded as the superposition of plane simple harmonic waves.
索末菲关于波的展开理论证明，球面波可以展开为平面简谐波的叠加。
Based on principals of interference of acoustic waves and simplified digital delay-line, comb filter effect induced by superposition of reflections from steps is presented.
从声波干涉的基本原理出发，通过数字延时线的简化分析，说明了多级台阶反射声的叠加对声波频率产生的梳状滤波效果。
The theory expresses the sound fields by a superposition of various surface elastic waves-circumferential waves and reveal the vibro-acoustic coupling mechanism in viewpoint of wave.
此理论将声场表示成各种表面弹性波-环绕波的再辐射的叠加，从波动的角度揭示声-振耦合机理。
The theory expresses the sound fields by a superposition of various surface elastic waves-circumferential waves and reveal the vibro-acoustic coupling mechanism in viewpoint of wave.
此理论将声场表示成各种表面弹性波-环绕波的再辐射的叠加，从波动的角度揭示声-振耦合机理。
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