cyclic

这是关于信号的调制与解调，是通信原理核心部分，也是通信中很常见的(This is about the signal modulation and demodulation, is the core part of communication theory, communication is very common )

说明：  LDPC 编码解码 编码器 高效传输 误比特率性能(ldpc decoder coder ber)

钢琴演奏评价系统研究 关键词：音乐识别特征提取 STFT 调式自动判别匹 配比较(Piano Performance Evaluation System Keywords: music recognition feature extraction STFT mode automatically identify matching comparison)

实现了卡尔曼滤波算法，多维数据输入输出，有相关注释。(KalmanFilter)

说明：  这是作者自己编写的matlab 程序设计。 请多多指教。 (This is the author himself prepared by the Matlab programming. Please exhibitions.)

PDF book about breaking into systems without authorization for educational purposes to better secure your systems

it is finite differeance time domain code for antenna

说明：  二阶广义积分器Simuklink仿真 包括正负序提取及二次谐波提取功能(Simuklink simulation of second-order generalized integrator includes positive and negative sequence extraction and second harmonic extraction Functions)

利用matlab进行图形的二维傅里叶变换(Using matlab graphical two-dimensional Fourier transform)

说明：  矩阵求逆（lu分解法），已在matlab下进行测试，计算精度大概为小数点后4位(Matrix inversion (lu decomposition method), has been tested under matlab, after the decimal point accuracy is approximately 4)