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小矩阵转换成大矩阵运用matlab来进MATLA矩阵及其基本运算(National Cheng Kung University small matrix conversion matrix to use matlab matrix into MATLA and basic computing)

说明：  对图像进行阈值分割 格式转换 MATLAB源程序(Thresholding the image format conversion MATLAB source code)

1.题目：数字滤波器的设计与应用 2.设计要求：利用 Matlab 软件,以复合信号分离为例,对 “数字信号处理” 课程中 的谱分析 、数字滤波器设计和信号滤波这三个过程进行了仿真实现,给出了仿真结果。 3.具体步骤： （1）构造原始信号s(t) （2）画出s(t)的频谱 （3）设计ellipse数字滤波器(IIR)，包括低通，带通，带通，并显示幅频特性 （4）用得到的滤波器进行滤波，分离出三路信号，观察时域波形和幅频特性 （5）用三路信号s1,s2,s3尝试重新合成原始信号 4.问题：为什么重新合成的信号和原信号不相等呢？谁能解释一下？谢谢,QQ:664519036( 1. Title: Digital Filter Design and Application 2. Design requirements: use of Matlab software to composite signal separation, for example, on "Digital Signal Processing" course Of the spectral analysis, digital filter design and signal filtering process carried out three Simulation, the simulation results. 3. Concrete steps: (1) construct the original signal s (t) (2) Draw s (t) of the spectrum (3) design ellipse digital filter (IIR), including low pass, band pass, band pass, and shows amplitude-frequency characteristics (4) filtering with a filter obtained by the isolation of three signals, observed time-domain waveform and frequency characteristics (5) with a three-way signal s1, s2, s3 try to re-synthesis of the original signal 4. Question: Why is re-synthesized signal and the original signal is not equal to it? Who can explain? Thank you, QQ: 664519036)

this is matlab version of removal of noise

在读入一个图像时，使用量化矩阵对图像做量化(In reading an image, use images to do quantitative quantization matrix)

核函数主成分分析，用于数据的特征提取，对于训练样本的降维有较好的效果(Kernel principal component analysis, feature extraction for data, which can effectively reduce the dimension of training samples, the better)

使用matlab语言实现的时域有限差分算法(finite differentiate time domain)

orthogonal frequency division multiplexing matlab code

说明：  切比雪夫-2型低通滤波器设计 基于matlab仿真编程的(-2 Chebyshev low-pass filter design based on Matlab simulation programming)

光纤信道盲均衡CMA算法，MATLAB开发环境，比较通用的一种算法(Fibre Channel CMA blind equalization algorithms, MATLAB development environment, more generic algorithm)