APF_ip_iq

说明：  模拟调制识别，可以实现多种模拟调制的识别。。。。(it is about the identification of the methods of modulation...)

basic concept in matlab

本文提出了一种采用六项余弦偶次幂窗三峰插值的算法来对电网谐波进行检测与分析。该算法通过分析电网信号加窗后傅里叶变换的频域表达式，利用谐波频点附近的三根离散频谱的幅值确定谐波谱线的准确位置，进而得到电网谐波的相关参数频率、幅值及相位的计算公式，最后再对其进行加权修正，从而进一步的提高检测的准确度和有效性。( this paper proposes an approach for power network harmonic detection and analysis based on six even order cosine window and triple-spectrum-line interpolation. Through analyzing the adding window signal fourier transform in the frequency domain expression, using amplitude of three discrete spectrum near the harmonic frequency point to determine the accurate position of the harmonic spectrum and get the calculation formula of related parameters of the power network harmonic such as frequency, amplitude and phase, the algorithm further enhances the accuracy and effectiveness by using weighted correction.)

说明：  最优化算法，使用信赖域法（LM）求解无约束问题。可以实现画出三维图像，通过修改初始点，得到迭代次数和函数值(Optimization algorithm, using LM method to solve unconstrained problems. Three dimensional images can be drawn, and the number of iterations and function values can be obtained by modifying the initial points.)

说明：  pmvf程序的完整版，鉴于论坛里面所有这个函数都没有完整版的，我究四处找资料补充发一个完整版的吧，里面有 test.m主程序来运行，其他是调用。 Fanger教授PMV－PPD指标计算程序. 欢迎大家互相分享(%PMVF Calculation of the Predicted Mean Vote (pmv) and the % Predicted Percentage of Dissatisfied (ppd) according % Fanger)

ocr feature extraction in matlab for example

说明：  一个matlab实例程序，可以用来检验和注册成会员(Matlab example of a procedure can be used to test and registered members)

speed control of induction motor

用matlab实现管道泄漏信号的仿真，并且有其他的突变信号，便于matlab仿真实验(Using matlab to achieve pipeline leak signal simulation, and there are other mutations in the signal, to facilitate the simulation matlab)

这个程序是在MATLAB下运行，对图像进行边缘检测。(This program is carried out on the image edge detection.)