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说明：  通用汉明码编码器，并加入容错处理，MATLAB源程序(General Hamming code encoder, and add fault tolerance)

太阳黑子是人类长久以来感兴趣的问题。此处运用matlab代码对太阳黑子的记录的数据进行处理，希望能提供帮助( Using archival records,astronomers have applied Wolfer s rule to determine sunspot activity back to the year 1700. Today the sunspot index is measured by many astronomers and the worldwide distribution of the data is coordinated by the Solar Influences Data Center at the Royal Observatory of Belgium. The text file sunspot.dat in the matlab/demos directory has two columns of numbers. The first column is the years from 1700 to 1987 and the second column is the average Wolfer sunspot number for each year.)

time variable problem using MATLAB

用矩形窗设计了一个FIR线性相位低通数字滤波器。截止频率0.5π，阶数为21阶。求出了系统函数并画出了幅频响应。(A rectangular window design with linear phase FIR low-pass digital filter. Cutoff frequency 0.5π, the order of 21 bands. Find the system function and plotted the amplitude-frequency response.)

说明：  matlab 中很实用的源代码2：中值滤波器、用Sobel算子和拉普拉斯对图像锐化，梯度算子检测边缘(Practical source code of matlab)

基于匀速直线运动下 进行卡尔曼滤波程序，包括仿真等，(Based on uniform linear motion under the Calman filtering procedures)

海杂波的matlab仿真，希望对大家有用(Matlab simulation of sea clutter, in the hope that useful)

Canny算子，用Canny提取数字图像的边缘(Canny operator, extract the digital image with Canny edge)

无刷直流电机矢量控制仿真模块 功能良好 运行快速(Vector Control of Brushless DC Motor function was good to run fast simulation module)

The function impulsive_noise generates non-gaussian noise with inputs of beta, gamma,and the power of noise is 1 in W or 0 in dB. The noise can be defined either real or complex. The other functions generate QAM symbol and insert a vector to another vetor with specific locations