twoarea

说明：  应用matlab完成邻域平均法来实现数字图像去噪(Digital image neighborhood average method denoising realization )

一阶导数、二阶导数，矢量归一化（SNV），多元散射校正（MSC），数据中心化，直接信号校正，平滑处理六种光谱数据预处理的方法(A first derivative, second derivative, vector normalization (SNV), multiplicative scatter correction (MSC), the data center of the direct signal correction, smoothing six kinds of spectral data preprocessing methods)

this is the source code for Matlab & simulink for digital communication. this folder contains all the matlab code in the textbook.

此程序为书上源码，功能是描述16QAM载波调制信号在AWGM信道下的性能，有误码率分析图(This program is a source book, the function is to describe the 16QAM modulation signal performance at AWGM channel has BER analysis chart)

说明：  经典的fastica算法，实现盲源分离，速度较快且效果较好(The classic FastICA algorithm can achieve blind source separation with fast speed and good effect)

利用单带滤波器来设计一个半带滤波器，并显示半带滤波器H0,H1,及 H0+H1的幅频响应 单带滤波器的归一化截止频率为0.84,长度＝16，半带滤波器的长度＝31。(to explain how to design a biorthogonal FB by Lattice structure)

时间跳变-脉冲位置调试超宽带发射和接收系统(TH-PPM ultra-wideband wireless communication system)

一个灰色模型的matlab实现，包含GM(1,1),GM(1,N),GM(2,1)和vershlust模型的系数计算，数值预报和误差分析以及图形输出(A gray model matlab realize, including GM (1,1), GM (1, N), GM (2,1) model and vershlust coefficient calculation, numerical weather prediction and error analysis, and graphical output)

通过基本的自相关函数法求解音频信号基音周期(Autocorrelation function for solving Pitch)

说明：  MATLAB程序，操作简单，用于生成M序列(MATLAB program, simple operation, used to generate the M sequence)