zydu-matlab

四阶龙格库塔法解常微分方程组 四阶龙格库塔法解常微分方程组(4-Runge-Kutta)

IEC协会推荐的电压波动和闪变的测量计算方法，并含相关的IEC标准和国标（这些标准很难找到免费的）(IEC Association recommended voltage fluctuation and flicker measurement and calculation methods, and with the relevant IEC standard and GB (hard to find these standards for free))

This is matlab code for generation of OFDM symbol using QAM modulation scheme

例程中包含了matlab仿真的瑞利衰落信道产生，并对其分布情况也作了分析(Routines included in the matlab simulation of Rayleigh fading channel generated, and its distribution were also made by analysis)

matlab程序设计教程，内附有详细的函数功能说明以及使用要点说明。对于初学者有很大的用处。(matlab programming tutorials,which includes a detailed description of the function of feature points and introductions.it is useful to the beginner. )

heat2 implecit heat2 implecit

本matlab函数，利用混沌映射不可预测性，遍历性和敏感性，以它们的参数和初始值的优异特性的，实现一个图像加密算法。我们引入了一个新的二维logistics函数。与现有的混沌映射相比，它具有更广泛的范围内混乱，更好的遍历性，混沌性和relativelylow实施成本。为了研究及其应用，我们提出了一个之乱转换（CMT），以有效地改变图像的像素位置。结合2D-logistics与CMT，我们进一步实现图像加密算法。(In this matlab test,we use the chastic s excellent properties of unpredictability, ergodicity and sensitivity to their parameters and initial values, chaotic maps are widely used in security applications. In this paper, we introduce a new two-dimensional Sine Logistic modulation map (2D-SLMM) which is derived the Logistic and Sine maps. Compared with existing chaotic maps,it has the wider chaotic range, better ergodicity, hyperchaotic property and relativelylow implementation cost. To investigate its applications, we propose a chaotic magic trans-form (CMT) to efficiently change the image pixel positions. Combining 2D-SLMM with CMT, we further introduce a new image encryption algorithm. )

说明：  梅花生长仿真效果，使用C++和matlab实现(Plum growth simulation effect, the use of C++ And realize matlab)

说明：  模糊PID控制器设计源程序，已在matlab中运行通过，有良好的控制效果(Fuzzy PID controller design source, has been run by matlab, good control effect)

线性调频Z变换用于实现频谱细化，该程序为实现CZT变换的一个简单例子。(A simple example for CZT.)