posmatlab

说明：  HDB3码的编码，图形，功率谱密度。用于通信原理教学等(Code HDB3 coding, graphics, power spectral density. Communication Theory for teaching)

瑞利信道的仿真，里面有瑞利的文档知识，仿真最后出瑞利分布的概率分布密度图和多普勒滤波器的频响图(Rayleigh channel simulation, which has knowledge of the Rayleigh documentation, simulation finally the probability distribution of the Rayleigh distribution density map and Doppler filter response chart)

Alan Variance Calculation

说明：  使用matlab工具对sonar数据集进行kmeans分类(Kmeans classification of sonar data set with MATLAB)

数值分析中基于Matlab环境下的Gauss全主元消去法的源代码(Numerical analysis in Matlab environment based on principal component elimination method Gauss full source code)

匹配追踪和正交匹配追踪，GSM中GMSK调制信号的产生，通过matlab代码。( Matching Pursuit and orthogonal matching pursuit, GSM is GMSK modulation signal generation, By matlab code.)

Matlab source code for DCT-based watermarking for grayscale images. DCT-based watermark recovering without resorting to the uncorrupted original image. Digital watermarking has been proposed as a viable solution to the need of copyright protection and authentication of multimedia data in a networked environment, since it makes possible to identify the author, owner, distributor or authorized consumer of a document. A new watermarking technique to add a code to digital images is presented: the method operates in the frequency domain embedding a pseudo-random sequence of real numbers in a selected set of DCT coefficients. Watermark casting is performed by exploiting the masking characteristics of the Human Visual System, to ensure watermark invisibility. The embedded sequence is extracted without resorting to the original image, so that the proposed technique represents a major improvement to methods relying on the comparison between the watermarked and original images.

三个简单地使用matlab实现的遗传算法的程序，为初学者提供一个入门知识(Three simple genetic algorithm matlab implementation of the program, to provide the knowledge of an entry for beginners)

蚁群算法，应用于TSP问题的解决，标有详尽的注释，已运行，正确(Ant colony algorithm, is applied to solve the TSP problem, with detailed notes, has been running, right)

源程序使用matlab编写 经过运行后 可以产生卡农音乐(it can produce canon music)