emd分解，通过emd分解重构信号实现降噪

Principal Component Analysis on the FERET Dataset

采用RGB+K-means对路标进行提取，效果十分不错。(RGB+ k-means is adopted to extract road signs, and the effect is very good.)

说明：  系统仿真了HSDPA中的HARQ系统，对HARQ系统的吞吐量，重传次数做了分析描述(Simulation of HSDPA in the HARQ system, the throughput of the HARQ system, the number of retransmission made analyzed and described)

给出了基于2D-OTSU算法的PCNN自动循环迭代源代码，用于图像分割，效果良好。(PCNN code for image segmentation based on 2D-OTSU)

matlab不用库函数的边缘检测程序 MATLAB在图像处理中的应用 Sobel算子的原理及应用算法设计 程序设计 (matlab library function without edge detection program MATLAB image processing applications in Sobel operator theory and application programming algorithm design)

说明：  《数字通信（第四版）》答案 《数字通信》(第4版)是数字通信领域的一本经典教材,通过对概率论及随机过程的复习,详细介绍了数字和模拟信源编码、数字调制信号和窄带信号与系统的特征、加性高斯白噪声中数字通信的调制和最佳调制与检测方法、基于最大似然准则的载波相位估计和定时同步的方法、不同信道模型的信道容量及随机编码、带限信道的信号设计、受到符号间干扰恶化信号的解调与检测问题、自适应信道均衡、多信道与多载波调制、扩展频谱信号和系统、衰落信道上的数字通信。(The solution of "Digital communication" " Digital communication" (4th edition) is a digital communications of a classic textbook in the field, through the review process, the probability of randomly addressed, details of the digital and analog source coding, digital modulation signal and the narrowband signal and system characteristics, additive white Gaussian noise in digital communication modulation and the best modulation and detection methods, based on maximum likelihood criterion of carrier phase estimation and time synchronization method, different channel model of channel capacity and random coding, band-limited channel signal design by ISI worse signal demodulation and detection, adaptive channel equalization, multi-channel and multi-carrier modulation, spread spectrum signals and systems, fading channel digital communications.)

自适均衡滤波器应算法程序，基于lms算法的，固定步长。(adaptive filter on lms)

试验，使用兰特X次生成相同的价值观，兰特（1，X）的(Tests that using rand X times generates the same values as rand(1,X))

迷你MATLAB 支持基础运算 矩阵运算 数学统计函数作图 线性方程组和一般简单方程求解(Mini MATLAB matrix operations support basic computing functions mapping mathematical statistics and general linear equations to solve simple equations)

matlab搭建非线性模型，求解微分方程(construction of nonlinear model)