High-pass-filter

基于拉普拉斯光滑算子的变换，常用于人脸识别(Smooth operator based on Laplace transform, using face recognition program)

Solves matrix equation of type AX+XB+XCX+D = 0 for X being non-square

说明：  这是国外一本经典教材附带的程序，通信系统的matlab实现，所含例子丰富(This is a classic foreign materials attached to the procedures, communications systems to achieve matlab contains abundant examples of)

关于高斯噪声去除的目前最优秀的算法 BM3D 欢迎大家交流学习(Welcome About the best algorithm BM3D Gaussian noise removal the exchange of learning)

说明：  FIR滤波器设计，50Hz陷波器设计，带通滤波器设计(FIR filter design, 50Hz notch filter design)

this source code for face

DDC 利用cIC和半带滤波器 抽取实现下变频

电力系统继电保护中方向阻抗型继电器仿真，在分布参数下构造“0接线”阻抗继电器模块，可对三相短路、两相短路和单相短路的出口故障、末端故障和外部故障进行仿真，得到各相继电器的相位，是研究阻抗保护的有效工具。(Power system protection in the direction of the impedance relay simulation, the distribution parameters structure " 0 Connection" impedance relay module, the simulation of three-phase short circuit, two-phase short-circuit and export single-phase short circuit fault, the end of the fault and external fault, the phase of each phase relay is an effective tool to study the impedance protection.)

本程序是现代谱导航分析中的惯性导航中的姿态角度的分析的matlab程序，经过仿真验证，获得较为准确的结果。(The navigation program is modern spectral analysis of inertial navigation in the analysis of the attitude angle of the matlab program, through simulation, to obtain more accurate results.)

用matlab实现男声变女声，女声变男生的程序，简单实用，信号与系统课外作业(With Matlab achieve male variable girl, girl become boys procedures, simple and practical, signal and system homework)