Kirchhoff formula
英
美 [ˈkɜrkhɔf ˈfɔːrmjələ]
网络 基尔霍夫公式; 基希霍夫公式
双语例句
- Application of Kirchhoff Formula in Prediction of Noise Level of Capacitor Installation
Kirchhoff公式在电容器装置噪声水平预估中的应用 - The zoning rules for two dimensional ring of Frensel zone plate is studied by means of Kirchhoff diffraction formula.
从基尔霍夫绕射公式出发进一步研究菲涅耳区板的二维圆环的分区规则。 - Starting from our previous solution of the 3-D unsteady Euler equation of hovering rotor flow, we discuss in subsection 1.2 how to compute far field noise by Kirchhoff formula.
采用Euler/Kirchhoff方法，计算了直升机旋翼悬停流场的远场噪声。 - According to the Kirchhoff approximation for rough surface scattering and by calculating the shadowing function and characteristic function of the fractal surface, the formula of the scattering cross section for the conducting fractal surface is derived by the consideration of the shadowing effect.
利用粗糙面电磁散射中的基尔霍夫近似，结合粗糙面遮蔽效应和分形粗糙面特征函数的计算，导出了考虑遮蔽效应情况下导体分形粗糙面单站散射截面近似公式。 - When the surface is not positioned in the linear region, Kirchhoff approach for rotating integration surface could lead to substantial error, but K-FWH formula can still work well.
当声源面位于流动非线性时，Kirchhoff公式会导致很大的计算误差，而K-FWH公式不存在这样的问题。 - Derivation of Kirchhoff Formula
Kirchhoff公式的一种推导 - Both Kirchhoff formula and K-FWH formula can predict the nonlinear noise generated by transonic rotor;
Kirchhoff公式和K-FWH公式均能够预测跨音速旋翼声场，并且具有较高的精度； - Then based on Kirchhoff approximation theory, the formula of the coherent and incoherent scattering intensity of plane wave from two dimensional dielectric normally distributed rough surface are derived, and the scattering intensity of a planar, rough surface of unit area.
然后从粗糙面散射Kirchhoff标量近似理论出发，得到了平面波对高斯分布的二维随机粗糙面的相干散射和非相干散射强度表达式，并给出了单位面积粗糙面非相干散射的表达式。 - Kirchhoff's faltung formula of complex aperture and complex ray simulation of aperture radiation
复口径Kirchhoff褶积公式和孔径辐射的复射线束仿真 - By means of Kirchhoff's diffraction formula, Fraunhofer's diffraction by elliptical aperture is theoretically discussed and, thereby, the diffraction pattern and the distribution law of light energy on the diffraction field are given.
本文从基尔霍夫衍射公式出发，对椭圆孔的夫朗和费衍射作了较为严密的理论推导，并由此分析了衍射场的衍射图样及光能量的分布规律。 - In terms of the Kirchhoff summation method of wave equation, an approximate calculation formula for 3-D synthetic seismograms of a single layered interface is established in this paper.
本文应用波动方程的克希霍夫积分定理，建立了一种单层界面三维理论合成记录的近似计算公式。 - Numerical examples show that the results obtained by means of the formula given in this paper are in good agreement with the direct numerical integration of the Kirchhoff integral formula. In the near field there are noticeable discrepancies between our formula and the Rayleigh diffraction integral.
数值计算比较表明，使用文中所给公式与直接用基尔霍夫衍射积分公式作数值计算的结果完全一致，而在近场使用瑞利衍射积分与文中结果有较大差异。 - Firstly according to radiation theory the boundary function of planar diffraction body is given, based on this condition the Kirchhoff diffraction formula is deduced and obtained. The physical meanings are given as well.
根据辐射理论重新设定了平面衍射物的边界函数，并以此条件推导了基尔霍夫衍射公式，并赋予新的含义。 - In this paper the problems involved in performing wave equation migration after stack by using Kirchhoff integral method are pointed out, and the solution of Kirchhoff integral formula for reflection from the plane interface is obtained.
本文指出了目前采用Kirchhoff积分法进行波动方程迭偏所存在的问题，直接求出平界面反射波的Kirchhoff积分公式的解。 - Asymmetric walking Kirchhoff pre-stack time migration in the travel time from the theoretical formula was introduced in odd, while the average travel time bending Kirchhoff formula, there is only the even entries.
非对称走时克希霍夫叠前时间偏移从理论上在走时公式中引入了奇次项，而普通的弯曲克希霍夫走时公式中，只存在偶次项。