The-MATLAB-Notebook-v8

基于PCS7的变比值控制应用程序开发Variable ratio control based on PCS7 application development(Variable ratio control based on PCS7 application development)

comparison of fuzzy pid and kalman filter based fuzzy pid

子波分析是一种日益获得广泛应用的信号处理新技 术, 具有良好的时-频局部化特性, 尤其适用于时变及非平 稳信号。本文简述了子波函数与子波展开的基本概念, 利用 展缩子波和调和子波将信号及信号均方值进行时-频两维 分布。最后采用了三种子波分析方法对轴承故障进行诊断, 即使对现有各种方法尚难以诊断的滚动体故障, 也能获得 满意的结果, 说明子波分析的确为机械故障诊断提供了强 有力的分析手段。(Wavelet a nalysis, as a new technique of signal processing , possesses ex cellent characteristic of time-frequency localization and is suitable for analyzing the time-var ying or transient signals. In this paper , the basic concepts of wavelet function and wavelet expansion are briefly introduced. The time frequency distribution of signal and its energy are obtained by decomposition via dilating wavelet and harmanic wavelet. )

自己编写的QPSK调制与解调，内含matlab-figure-file、matlab-M-file和得出的jpg格式图形！(I have written QPSK modulation and demodulation, containing matlab-figure-file, matlab-M-file and come to the jpg format graphics!)

说明：  matlab图形界面设计(GUI)dfdfdfs(matlab gui)

空气中声传播的fdtd例程，简单可用，希望对大家有帮助(Fdtd airborne sound propagation routines, simply available, we hope to help)

surface acoustic wave device In_Err_Apodized_Filter

Direct Torque Control principle

说明：  对一幅图像的进行小波包分解，然后提取每一层的系数(image of a pair of wavelet packet decomposition, and then extract the coefficient of each layer)

matlab使用过程中使用较多的一些函数合集(matlab process of using some of the functions use more collection)