Digital-Signal-Processing-

用matlab写的仿真H.263标准的程序，其中包括了基本的程序，还有测试程序(Matlab simulation written using H.263 standard procedure, including the basic procedures, as well as test procedures)

图像的平面微分平方和能够反映图像高频分 量的能量。用计算平面微分平方和的方法在空间域上计算相邻像素亮度差值的平方和，对应于在频率域上计算图像高频分量的能量和，此值越大，图像对焦越准确(Differential square image plane and the image can reflect the energy of high frequency. Computational method of Planar Differential squares calculated in the space domain to the square of the difference between the brightness of adjacent pixels and corresponds to the image in the frequency domain calculation of high frequency energy and, this value is larger, the more accurate the image focus)

功率谱函数的MATLAB代码，内含加窗函数代码，并附带解释标注。(Power spectrum function)

matlab访问串口的程序，包括：打开、关闭和清除串口对象；读串口、写串口；串口的数据流控制；还包括：怎么用matlab发送手机短信的例程；这是学习matlab访问系统硬件的原理，不可多得的经典例程！(matlab serial port access procedures, including: open, close and clear the serial port object read serial port and write serial port serial data flow control also include: how to send SMS using matlab routine it is to learn the principle of the hardware to access the system matlab , rare classic routines!)

数学建模公交线路问题 该程序利用迪杰斯特拉算法经行求解，使用该代码前最好先阅读Readme.doc(Bus lines mathematical modeling problem using Dijkstra algorithm for the program through the line solution, a good idea to use the code to read Readme.doc)

program to hep on analyse the multilevel inverterprogram to hep on analyse the multilevel inverterprogram to hep on analyse the multilevel inverterprogram to hep on analyse the multilevel inverter

说明：  To find the encryption and decryption of image which is affected by the noise.

移动通信实验MATLAB仿真程序代码，包括1AWGN信道中BPSK调制系统的BER仿真计算，2移动信道建模的仿真分析，3CDMA通信系统仿真(Mobile communication experiment MATLAB simulation program code, including 1AWGN channel BPSK modulation system BER simulation calculation, the mobile channel modeling simulation analysis, 3CDMA communication system simulation)

说明：  变模态分解（EMD）的代码，适用于对非平稳非线性信号的分解，分解后得到多个IMF和一个残基。(The code of variable modal decomposition (EMD) is suitable for the decomposition of non-stationary and nonlinear signals, and after decomposition, multiple IMFs and one residue are obtained.)

神经网络的结构选4-5-3，学习速率为0.28，惯性系数为0.04，加权系数初始值取-0.5-0.5上的随机数。(4-5-3 neural network structure selection, the learning rate is 0.28, the inertia coefficient is 0.04, the initial value of weighting factor to take-0.5-0.5 the random number.)