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双光纤耦合器的建模仿真，对耦合器的透过率参数分析研究(Dual optical fiber coupler of modeling and simulation of coupler transmittance analysis of parameters)

Matlab语言编写的2维粒子群算法进行函数最优化的源代码，并附有AVI视频演示！(2-D particle swarm optimization source code for optimization (with the AVI video!))

Matlab 实例-编写M脚本文件，涉及比较深层的 MATLAB 内容：脚本；函数（一般函数、内联函数、子函数、私用函数、方法函数）；程序调试和剖析；数据结构（类、对象）；重载和继承；面向对象编程。本章配备了许多精心设计的算例。这些算例是完整的，可直接演练的。读者通过这些算例，将真切感受到抽象概念的内涵、各指令间的协调，将从感知上领悟到面向对象编程的优越和至关要领。(Matlab Examples- the preparation of M script file, involving comparison MATLAB deeper content: script function (general function, inline function, Functions, Private Functions, methods, functions) program debugging and analysis data structure (class, object) Overloading and inheritance object-oriented programming. This chapter with a number of carefully designed examples. These examples are complete, can directly exercise. Through these examples the reader will really feel the meaning of abstract concepts, the coordination between commands from realizing that the perception of object-oriented programming and to the superior customs essentials.)

说明：  matlab仿真的蓝牙调频通信系统，对用matlab进行通信仿真的开发人员非常有用(matlab simulation of Bluetooth FM communication systems to communicate with the matlab simulation is very useful for developers)

matlab中gui的学习方法讲解，主要是建立按钮，按钮功能等方法(MATLAB gui SUTDY)

生成数字信号处理课程常用信号：冲激、阶跃、斜坡、正弦、复指数和指数信号，幅度长度时延频率相位可控。(Signal generation, capable of generating pulse, step, ramp, sine, complex sine and exponent signals.)

说明：  根据Gadner公式编制的密度拟合程序，适合地震解释中没有密度只有速度的情况下自动生成密度(Prepared according to the density of the formula Gadner fitting procedure for seismic interpretation in the case of no density is only under the automatic generation of speed-density)

this application is used to search in data base to get some data with special specificaton

假定半波长间隔均匀分布线列布阵的阵元数N=16，若入射平面波为f=62.5Hz的正弦信号，信号持续时间为0.4s， 系统采样频率 =1 KHz,阵列加权为均匀加权，分别给出 a)当平面波信号分别从 0,10,20,30,40,50,60,70,80,90,100度方向入射时，指向90度的波束形成器的输出序列； b)当平面波信号分别从0:1:180度方向入射时，指向90度的波束形成器的输出序列经过平方求和后的分贝数输出（把所有181个输出绘制在同一幅图中)(Assuming N=16, f=62.5, fs=1KHz, uniform weight, and the code gives: a) 90 degree response when incidence angles are: 0: 10: 100 degrees b) 90 degree spectral response when incidence angles are: 0:1:180 degrees )

16QAM仿真系统，学通信实验必备，绝对有用。(16QAM simulation system, learning communication experiment must absolutely useful.)