m

如上图所示，定向耦合器由完全相同的直波导与弯曲波导构成，波 导芯为宽高比相同（均为 a） 的正方形， 其工作波长，波导材料 对 TE 模式的折射率，及圆弧形弯曲波导的半径 r 等参数如图所 示，若波长为 1550 nm， 归一化光功率为 1 的光波从直波导输 入，请选择适当的满足单模工作的波导宽度 a， 然后给出从圆形弯 曲波导输出的归一化光功率 P4与两波导边缘的间距 d(Directional coupler by the same straight and curved waveguides constituting the waveguide, waves Conducting core is the same aspect ratio (are a) square, its operating wavelength, the waveguide material The refractive index of the TE mode and the arc-shaped curved waveguide of radius r and other parameters as shown Shown, if the wavelength of 1550 nm, normalized optical power a light straight waveguide input In, the appropriate work to meet the single-mode waveguide width a, and then is given a circular bend Curved waveguide output normalized optical power P4 and two edges of the waveguide spacing d)

calculate optimum number of bins when construct histograming.

该程序利用空时二维自适应原理仿真了杂波的二维方向图，计算了杂波协方差矩阵，并画出了二维杂波谱。(The program uses the principle of space-time adaptive simulation of a two-dimensional patterns of the clutter, clutter covariance matrix is ​ ​ calculated, and plotted the two-dimensional clutter spectrum.)

说明：  灰色GM(1,1)和DGM源代码，功能齐全，各种显示内容均添加(Grey GM (1,1) source code, complete functions, various displays are added)

随机跳跃法实现最优化问题实例程序（MATLAB code）(A program using random jump method to achieve optimization (MATLAB code))

本程序已被本人整理到WORD文档中，编程语言为MATLAB，本文设计的数字滤波器为带通滤波器，设计参数皆在文档中表明。此程序已经验证是正确可执行的，并能生成图形，值得下载！(This program has been organized into WORD document I, the programming language MATLAB, this design of digital filter for band-pass filter, design parameters are indicated in the document. This procedure has been verified is correct executable, and can generate the graph, it is worth to download!)

说明：  三相对称短路计算用于生成节点导纳矩阵以及节点阻抗矩阵，进行短路电流、节点电压的计算(Three phase short circuit calculation used to generate the nodal admittance matrix and the node impedance matrix, the short circuit current, node voltage calculation)

G-Rilling的emd工具箱,很好的完成hht中的黄变换。(G-Rilling s emd toolbox, well done hht of Huang Transform.)

参照3GPP标准，基于用户分布的3D波束赋形方案的研究(Referring to the 3GPP standards, research users distributed 3D beamforming scheme based)

改进蚁群路径规划，主方向因子,在二维空间搜索路径(mproved ant colony path planning)