distributed_signals_DOA_ESPRIT

CSTR系统过程控制问题，内涵子函数调用程序，可以快速了解MPC在过程控制中的应用(CSTR process control problem)

speech recognition code for matlab

pi/4DQPSK调制解调程序，解调使用的是差分解调算法。(pi/4 DQPSK modulation and demodulation)

简单的运动目标目标检测，matlab源程序(Simple moving object target detection, matlab source)

主成分分析程序实现数据降维，能用比较少的变量解释大部分资料中的变异的几个新变量(Several new variables principal component analysis procedures to achieve data dimensionality reduction, most of the information in the variation can be explained by the relatively few variables)

说明：  它由与逆变器和光伏阵列MPPT也描述文件的Simulink模型 (it consists of simulink model of PV array with inverter and mppt and aslo description file)

对信号进行短时傅里叶变换的程序，可以通过调用改程序分析信号的时频分布(this code is used to analysis the short time fourier transform of the signal )

从曲线中检测到其峰值：先利用二次求导得到所有凸点，设置门限，去除过低的凸点，然后利用滑动窗的方法，在凸点中求得满足峰值要求的点(Detected from the curve to its peak: the first use of the second derivative method to get all the bumps, set the threshold too low to remove the bumps, and then use a sliding window, obtained in a bump to meet peak requirements of point)

说明：  针对NL-Mreans算法运算时间较长的问题，提出了优化，大大缩短了时间。(To solve the problem of long operation time of NL-Means algorithm, an optimization method is proposed, which greatly shortens the time.)

说明：  matalb实现的协同过滤，里面包含很多重要算法，都已经实现(matalb achieve collaborative filtering, which contains many important algorithms have been realized)