The result shows that the diffraction propagation on X-band is not the best model under the sea environment.
结果表明在近海面环境下X波段电波的绕射传播不是最优的传播模式。
Conclusion that result of diffraction of light is rectilinear propagation in limited condition is demonstrated from wave theory.
从波动理论出发，证明极限情况下光的衍射结果就是光的直线传播。
The propagation properties of the bottle beam were described based on geometrical optical theory, interferential theory and diffraction theory.
分析几何光学理论、干涉理论和衍射理论对局域空心光束传输特性的描述。
Based on the method of matrix decomposition, and the Collins diffraction integral formulae, the propagation characteristics of a Gaussian beams passing through misaligned spatial filter are studied.
采用矩阵分解的方法，从柯林斯衍射积分公式出发，对高斯光束通过失调空间滤波器的传输特性进行了分析，得到了相应的解析式。
Based on the generalized Huygens-Fresnel diffraction integral, the analytic propagation expressions for Lorentz beams passing through first-order axisymmetric optical system are derived.
从广义惠更斯-菲涅耳衍射积分出发，导出了洛伦兹光束通过一阶轴对称光学系统传输变换的解析公式。
Four propagation models of diffraction, line-of-sight, scatting and duct are analyzed. The basic transmission loss for each of the models is calculated according to the ITU-R model and GZB model.
分析了电波的地波绕射传播、视距传播、散射传播和波导传播等四种传播模式，根据ITU - R和GZB建议的模型分别计算了各传播模式的基本传输损耗。
The elegant Laguerre-Gaussian (L-G) beams and their propagation properties are studied in detail using the propagation equation derived from the generalized Huygens-Fresnel diffraction integral.
用由广义惠更斯菲涅耳衍射积分推导出的传输方程详细研究了复宗量拉盖尔·高斯光束及其传输特性。
The propagation formula of the cross-spectral density of partially coherent flattened Gaussian Beam(PCFGB) through ABCD optical system was derived using Huygens-Fresnel diffraction integral formula.
利用惠更斯-菲涅尔衍射积分公式导出了部分相干平顶高斯光束（PCFGB）通过ABCD光学系统的传输公式。
The diffraction effect is the phenomenon of wave propagation into shadow region.
衍射则是电波绕射传播到遮蔽区的现象。
The influence pattern of deep water channels upon wave propagation is studied by REF/DIF model, which combined refraction and diffraction effects together.
本研究是把折射和绕射的相关影响结合起来考虑的复合折射-绕射模型REF/DIF 模型应用于深水航道对波浪传播的影响规律的研究。
For the two-dimensional horizontal wave propagation problem, refraction and diffraction of waves must be taken into account.
对于平面二维波浪传播的问题，则需要考虑波浪的折射、绕射。
Based on our work, the physical meaning of diffraction-free beams, the propagation and transformation as well as focusing properties of Bessel beams are analyzed.
基于我们的工作，本文分析了无衍射光束的物理意义，贝塞耳光束的传输变换和聚焦特性。
This paper studies the rule of diffraction generated when the electromagnetic wave propagation falls across barriers.
研究了电磁波遇到障碍物而产生绕射的规律。
This paper studies the rule of diffraction generated when the electromagnetic wave propagation falls across barriers.
研究了电磁波遇到障碍物而产生绕射的规律。
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