Rectangularwindow-filter

matlab code for Bernoulli s chaotic map used for encryption

通过参数设定，改变不同类型的整幅图像的亮度(scale the intensity of the input image)

就是简单的闪灯显示，属于基础的，适合初学者(Is a simple flash display, is based, suitable for beginners)

this is the selection diversity technique, used for avoiding the effects of fading.

说明：  用MATLAB来得到一个理想的OFDM信号PAPR的CCDF。(With MATLAB to get a good PAPR of OFDM signal CCDF.)

Application to compute heat conduction using Finite Element Method

K均值聚类算法，网上已存在很多，我是新手，大神的看不懂，觉得自己编的比较适合菜鸟理解吧。。。(K-means clustering algorithm)

近似熵是一种衡量衡量非线性时间序列复杂性的非线性动力学分析方法，其物理意义 为熵值越大，时间序列的自我相似性越低，序 列越复杂，反之序列自我相似性越高；并且样 本熵对于序列长度依赖弱，仅需较短的数据就 能够得到稳健的熵值，同时其计算不需对数据 粗粒化，具有较好的抗干扰能力 (Approximate entropy is a measure to measure the complex nonlinear dynamics of nonlinear time series analysis method, the physical meaning of entropy value is larger, the lower the self-similarity of the time series, the more complex the sequence, whereas sequence of self-similarity the higher and the sample entropy weak dependence for the length of the sequence, only shorter data can be healthy entropy value, calculated without data coarse-grained, with good anti-jamming capability)

说明：  初始值问题的数值求解。利用MATLAB编写RK4计算程序，计算结果准确。可为研究工作提供帮助。(The numerical solution of the initial value problem.)

说明：  运用随机四参数生成法形成多孔介质，可更改孔隙率(Using random four parameter generation method to form porous media, the porosity can be changed)