phase-hopping-communication

用Jacobi Gauss-seidel SOR迭代法求解线性方程组(With Jacobi Gauss-seidel SOR iterative method for solving linear equations)

分數階渾沌圖 免用到simulink 趕快收藏唷(Fractional chaos map)

AES-128, AES-192, and AES-256 加密与解密。Matlab源程序。( AES-128, AES-192, and AES-256 encryption/decription functions.)

说明：  振动冲击谱密度matlab程序，将输入时域转为频域。(The input time domain is converted into frequency domain by the matlab program of vibration and shock spectral density.)

余弦波是渐变的，当ωt+φ的取值变化量很小时，Y的变化量也是很微小的。余弦波的这一特性保证了嵌入水印后相邻字符灰度值差别不大，人眼无法识别，从而保证了水印的不可见性和图像质量。(Cosine wave is gradual, and when ωt+ φ values variation is very small, Y amount of change is very small. Cosine waves This feature ensures that watermarked gray value of adjacent character is not very different, the human eye does not recognize, thus ensuring the invisibility of watermark and image quality.)

可见光通信系统仿真，考虑多次反射，对应文章Improvement of data rate by using equalization(visible light communication system simulation)

Program to calculate the impulse response of ideal filters that illustrate the gibbs fenomenon.designing filters by windowing method and seing impulse and frecuency respons of filters and checking response by incresing the number of elementos fenomenon of gibbs.

再matlab上实现基于扩频的数字水印。图像处理(This is a simple spread-spectrum based informed watermarking implementation in MATLAB. )

说明：  一个基于遗传算法与mp的外文文献，讲的很清楚明了，有参考价值(VOICED/UNVOICED SPEECH DISCRIMINATION IN NOISE USING GABORATOMIC DECOMPOSITION)

levle set method to handle image in c-v model which is improved by original method