four-chapter

关于matlab信道仿真中经常用到的信道噪声函数，包括高斯白噪声，瑞利信道，赖斯信道的仿真(Channel simulation on matlab frequently used function of channel noise, including Gaussian white noise, Rayleigh Road, Lai Sixin Road Simulation)

说明：  实现对故障诊断的主成分分析和主成分,一个很好的效果。(Realize PCA and KPCA on fault diagnosis, a very good effect.)

有信道编码，调制，信道估计等，光纤陀螺输出误差的allan方差分析，包括主成分分析、因子分析、贝叶斯分析。( Channel coding, modulation, channel estimation, allan FOG output error variance analysis, Including principal component analysis, factor analysis, Bayesian analysis.)

摄影测量中用于特征点检测的一个Matlab程序。检测主要针对边缘来进行。(Photogrammetry is used to detect feature points of a Matlab program. Mainly carried out for the edge detection.)

SVM 用于基于块划分特征提取的图像分类，主要针对一幅图片的类型进行判断，比如说是古建筑、水体、植被等。(SVM classfication for image class type, based on image block segmention.)

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.)

exercise1:为基于小波变化与局部能量的图像融合方法 exercise2:为基于自适应算法的图像融合算法 myfunction1~myfunction5:为性能指标评价函数(exercise1: To change and local energy based on wavelet image fusion method exercise2: adaptive algorithm based image fusion algorithm myfunction1 ~ myfunction5: performance indicators for the evaluation function)

使用蚁群算法解决TSP问题的例子,包括城市的坐标 最大迭代次数 蚂蚁个数 表征信息素重要程度的参数 表征启发式因子重要程度的参数 信息素蒸发系数 信息素增加强度系数 各代最佳路线 各代最佳路线的长度 等参数(TSP problems ant colony algorithm)

适用于MATLAB中的小程序，功能是：添加环境效果，已经验证，可以使用。(Applicable to the small MATLAB program functions are: add environmental effects, has been verified, you can use.)

平面4节点单元的动力响应计算的有限元程序，用MatLab编制。(Plan 4 nodes finite element program of MatLab for dynamic problems)