Matlab-mex-C-programming

用matlab做的类似画图板一样的工具。运用了GUI编程技术，可以做为学习GUI的参考

傅立叶变换能将满足一定条件的某个函数表示成三角函数（正弦和/或余弦函数）或者它们的积分的线性组合。(Fourier transform can meet certain conditions expressed as a function trigonometric (sine and/or cosine functions) or their integral linear combinations.)

group face detection

用于故障电流计算，下垂控制的电流计算验证。(The calculation of fault current)

说明：  建立并绘制任意信号的模糊函数。已在巴克码，线性调频，脉冲信号中测试过。(This program estimates and plots the ambiguity function for any signals. I have tested it for the Barker code, chirp signal, pulse signal. for good results the length of the input vector (Ut)should be more than 7. Example- a rectangular pulse should be described as[1 1 1 1 1 1 1]. Please, give your suggestions. it is made with the help of "xcorr" function (Author: R. Losada) in MATLAB and Ilia Iliev from TU-Sofia )

本程序是关于常微分方程初值问题数值解的欧拉算法及线性多步法的matlab代码，对初学者有帮助，例题用的李荣华的微分方程数值解法第一章的习题(This program is about Euler algorithm for numerical initial value problem of ordinary differential equations and linear multistep method matlab code, useful for beginners, examples of Li Ronghua s numerical solution of differential equations of the first chapter exercises )

香农能量算法用于提取心音信号的包络。同时还有一个用来对信号进行训练用的程序，主要是提取信号的特征值，以实现信号的分类识别(Shannon energy algorithm is used to extract the heart sound signal envelope. As well as a training signal is used for the procedure used mainly to extract the value of the signal characteristics in order to achieve signal classification and recognition)

matlab script that detects a contour

求取正弦信号的幅频谱图、均方根谱、功率谱、对数谱等(To strike the amplitude of the sinusoidal signal frequency spectrum, the rms spectrum, power spectrum, the number of spectral)

这是一个仿真qpsk信号通过不同信道模型（包括单径，多径，莱斯，瑞利平坦等信道）的性能的matlab程序。(This is a simulation qpsk signals through different channel model (including single-track, multi-track, Condoleezza Rice, Rayleigh and other flat Channel) Performance of Matlab procedures.)