fft

二级倒立摆的非线性部分采用S函数实现，此为S函数实现的源代码(The nonlinear part of the double inverted pendulum using S functions to achieve, this is the S function, the source code)

《精通Matlab6.5版》张志勇等编著，书上的C与Matlab结合的代码("proficient Matalab 6.5 version," Zhang Zhiyong, and other edited books on the combination of C and Matlab code)

所谓跳频，比较确切的意思是：用一定码序列进行选择的多频率频移键控。(The so-called frequency hopping, the exact meaning is: a certain code sequence selected frequency to frequency shift keying.)

基于MATLAB_GUI的Costas环性能演示软件实现(Costas loop performance in MATLAB_GUI presentation software implementation)

IEEE Network Architecture

说明：  有限元分析的matlab代码- 结构 本书旨在为读者提供一些有限元的matlab代码。 在简短介绍MATLAB之后，这本书说明了有限元。 用简单的脚本和函数实现一些问题。 .离散系统，如弹簧和杆 .梁和框架在二维和三维中的弯曲 .平面应力问题 .弯曲板 .(MATLAB Codes for Finite Element Analysis- Solids and Structures This book intend to supply readers with some MATLAB codes for finite element analysis of solids and structures. After a short introduction to MATLAB, the book illustrates the finite element implementation of some problems by simple scripts and functions. The following problems are discussed: .Discrete systems, such as springs and bars .Beams and frames in bending in 2D and 3D . Plane stress problems .Plates in bending .)

MATLAB控制系统仿真与实例详解（附书光盘）(Control System Simulation with MATLAB examples explain (with the book CD-ROM))

matlab 傅里叶变换 图像的傅里叶变换，利用快速傅里叶进行图像的频率分析然后画出图形(Matlab Fourier transform The Fourier transform of the image and of the image by using the fast Fourier frequency analysis and then draw the graphics)

Modified binary PSO PSO with mutation tools of genetic method combined

说明：  使用weber算法计算齿轮啮合刚度，具有重大意义。(It is of great significance to use the weber algorithm to calculate the gear mesh stiffness.)