paraxial approximation
英
美
网络 傍轴近似; 旁轴近似; 近轴近似
双语例句
- The full parallax CGHs are generated by the point source method and the wave-oriented method without paraxial approximation.
这种全视差计算全息图是由点基元方法和平面波导向法生成并且没有经过旁轴近似。 - Within the framework of the paraxial approximation the matrix decomposition and equivalent transformation of misaligned optical systems are studied in detail based on matrix method in optics.
在傍轴近似下，采用矩阵光学方法详细研究了失调光学系统变换矩阵的分解与等效变换问题。 - Research on Radially Polarized Gaussian Beam Beyond the Paraxial Approximation
对径向极化高斯光束超越近轴近似模型的研究 - It is shown that the propagation of charged-particle beam can be made in complete analogy with the transmission of ellipse-Gaussian light beam in paraxial approximation.
傍轴近似下带电粒子束传输可完全类比于近轴光线椭圆高斯光束的传输。 - The electromagnetic transmission performance of a 2-D cylindrical magnetic radome is analyzed by complex ray paraxial approximation method in this paper.
利用复射线近轴近似法分析二维圆柱形磁性天线罩的电磁传输特性。 - The properties of the optical array with large size and radius of curvature which is composed by many optical elements are analyzed under high order approximation condition by using diffraction theory. The difference of results under two approximations-high order approximation and paraxial approximation are also given.
利用衍射理论，在高阶近似下计算了大尺度球形光学列阵和平面光学列阵的综合成像特性，给出了成像条件和成像公式，并与傍轴近似下的理论结果作了比较。 - The parabolic equation method, which is an efficient and fast numerical approach based on paraxial approximation of the wave equation, models energy propagation in a cone centered on the paraxial direction.
抛物线方程算法是建立在波动方程轴向近似基础上的一种数值方法，该方法假设电磁波能量沿抛物线轴向的锥形区域传播。 - Numerical computations show that paraxial approximation gives almost the same accuracy in the paraxial region as complex ray method but spends much less computer time.
所得数字结果表明，在波束的近轴区域内为获得同样的计算精度，近轴近似法所需要的计算机时间远小于复射线追综法的时间。 - To simplify the calculation, a paraxial approximation is employed when the observer is located near the beam axis.
当观察点接近波束轴线时，可用近轴近似法简化计算。 - In this paper, the stray light and ghost image caused by multi-reflection in high power infrared optical systems are analyzed and discussed, and the comprehensive method incorporating paraxial approximation and real ray trace is presented;
本文主要研究了大功率红外光学系统中光学表面多重反射而形成的杂散光及其数学模型与计算方法，提出了将近轴近似法和有限光线追迹法相结合的综合分析方法； - Based on the Rayleigh-Sommerfeld diffraction integral, the far-field expression for ultrashort pulsed Gaussian beams with constant waist width in a dispersive medium is derived without involving the paraxial approximation.
从瑞利-索末菲衍射积分公式出发，在不作近轴近似的前提下，得出了等束宽脉冲高斯光束在色散介质中的远场公式。 - Both continuous paraxial approximation formula and two order discrete paraxial approximation formula are developed for one way wave motion transmitting apparently along normal direction based on kinematics model and local polynomial interpolation function.
基于单向波动法向透射的一般运动学模型和局部多项式插值函数，推导建立了连续形和2阶离散形法向透射傍轴近似公式。 - Aiming at this problem, all kinds of artificial boundary such as viscous boundary, paraxial approximation boundary, superposition boundary, transmitting boundary and viscous-spring boundary were put forward by scholars to deal with the wave reflection on the boundary of finite model.
为此许多学者提出了多种人工边界以解决有限截取模型边界上波的反射问题，其中比较有代表性的有粘性边界、旁轴近似边界、叠加边界、透射边界和粘&弹性边界等。 - Based on complex ray method, a paraxial approximation analysis of Gaussian beam transmission through a dielectric radome is presented.
本文根据复射线法对通过介质天线罩的高斯波束场进行近轴近似分析。 - In the paraxial approximation, a potential well also exists for laser spot size.
在傍轴近似下，激光束宽依然有势阱方程。 - Under the paraxial approximation, the optical transformation matrix of the upside down taper lens fiber end is given.
在近轴近似下，给出了这种光纤端的光学传递矩阵。 - Research of paraxial approximation optical coordinate transform
旁轴近似光学坐标变换研究 - Complex ray paraxial approximation: principle and Applications
复射线近轴近似原理和应用 - Starting from the Rayleigh diffraction integral and using analytic signal complex representation, the propagation equation of ultrashort pulses in free space has been derived in the near-field beyond the paraxial approximation, which is consistent with the paraxial results in previous literatures if the paraxial approximation is made.
从瑞利衍射积分公式出发，利用复解析信号法推导出了等衍射长度超短脉冲高斯光束在自由空间近场非近轴传输方程，在近轴近似条件下与文献已有的近轴结果一致。 - Using Helmholtz equation and Fourier transform, the approximate formulas and numerical results have been obtained under paraxial approximation.
在傍轴条件下导出了相应的近似公式，并给出了数值计算结果。 - The early research was based on the scalar approximation and paraxial approximation.
早期的自聚焦研究是在考虑了傍轴近似和标量场近似的前提下得到的。 - Gaussian beam method is based on the dynamic raytracing and paraxial approximation method.
高斯束方法是在动力学射线追踪和旁轴近似方法基础上发展而来的。 - Longitudinal Field Energy and Scalar Paraxial Approximation
纵向场能量与光束的傍轴标量近似判据 - It is well known that there is apparent inconsistence or paradox in the conventional theory of laser optics due to the assumed paraxial approximation or assumption of slowly varying amplitude.
众所周知，传统激光光学理论，由于采用了傍轴近似或缓变振幅近似，存在明显的不自洽性和佯谬； - In this paper, on the basis of the scalar diffraction theory of the angular spectrum representation and by taking the circular aperture diffraction as an example, power-series expansion corrections to the paraxial approximation are derived.
文章在标量衍射理论角谱表示的基础上，以平面波圆孔衍射为例，给出了衍射场的级数解，分析了级数解的有效性； - By using the complex analytic signal representation and the method of stationary phase, the propagation equation of ultrashort pulses in the far-field has been derived beyond the paraxial approximation, which allows for large angles in the far-field.
使用复解析信号法和稳相法推导出了等衍射长度超短脉冲高斯光束在自由空间远场非近轴传输方程，可用来处理自由空间远场大角度的传输。 - EM transmission and scattering characteristics of radome may Conveniently be analyzed by complex ray paraxial approximation and collective ray methods.
利用复射线近轴近似法和集合射线法，可以十分简便地分析天线罩的电磁传输特性和散射特性。本文以二维圆柱形天线罩为例，分析了介质罩对罩内雷达天线性能的影响； - The optical matrix under paraxial approximation can make the calculation of optical transmission easy and convenient in designing optical system.
傍轴近似下的光学矩阵理论，可以简化光束传输计算过程，使光学系统设计更为方便。 - Through the method of angular spectrum, summarize the analytical expression of the propagation of ordinary light and extraordinary light in the crystal media, and obtain the vector propagation model of paraxial approximation.
通过角谱方法归纳了晶体中寻常光（o光）和非常光（e光）传输的解析表达式，并且得到了傍轴近似的矢量传输模型。 - With the help of paraxial approximation, matrix theory and interference theory, the output laser beams of near field with two dimensions ASFC CO2 laser and three dimensions ASFC CO2 laser have been researched.
根据旁轴矩阵以及相干理论，分析了二维轴对称折迭组合腔二氧化碳激光器和三维轴对称折迭组合腔二氧化碳激光器的近场输出光束，并做了数值计算。