matlab-baibao

说明：  基于巴特沃思滤波器的50Hz工频险波器,程序给出了滤波器系数并且作了频谱分析(Butterworth filter based on the frequency of 50Hz- risk devices, procedures given the filter coefficient and made spectrum analysis)

used to calculate energy efficiency in wireless sensor nodes

convert temperature C-->F, F-->C

三相PWM的svpwm控制SIMULINK程序图(The three-phase PWM control SIMULINK program chart svpwm)

基于Matlab Gui的图像去噪程序，内含多种小波去噪方式，PSNR&MSE对比等。(Based on Matlab Gui denoising procedures, containing a variety of wavelet de-noising way, PSNR & MSE contrast.)

说明：  用matlab实现Harris Corner Detector的算法，用于检测图像中的特征点。(achieved using Matlab Harris Corner Detector algorithm for detecting image of feature points.)

MATLAB是一套功能十分强大的工程计算及数据分析软件,具有友好的可视化编程界面及接近数学表达式的自然化语言。针对信号与系统中傅里叶变换具有抽象度高、难于理解的特点，利用MATLAB强大的信号处理功能、阶跃响应，微分方程，卷积定理的内容，通过MATLAB 程序实现。本文介绍了MATLAB在信号与系统仿真中的应用,该软件在通信电子类课程中应用越来越广泛,通过几个典型实例来重点研究。 关键词：MATLAB；阶跃响应；微分方程；卷积；信号与系统；仿真 (MATLAB is a very powerful engineering calculations and data analysis software, with a friendly interface and visual programming language close to naturalizing mathematical expressions. For the Fourier transform of signals and systems with a high degree of abstraction, it is difficult to understand the characteristics, the use of the powerful MATLAB signal processing functions, step response, convolution theorem content differential equations by MATLAB program. This article describes the application of MATLAB in signal and system simulation, the software in the electronic communications courses in applied more widely, by focusing on a few typical examples. Keywords: MATLAB step response signals and systems convolution differential equation simulation )

通过计算机上的多媒体卡，按照下列过程进行声音信号的录制、处理和回放，观察处理前后的波形，同时比较声音信号处理前后的效果。 1、 将录制的信号反褶以后播放（反褶以后的信号移到t=0点开始）。 2、 将录制的信号改变取样率（相当于进行了尺度变化）以后播放。 3、 将录制以后的信号延时1s，并将幅度降低一半，接着与原来的信号相加，然后播放。(Multimedia card on your computer, follow the process for recording, processing, and playback sound signal waveform observed before and after treatment, while comparative effectiveness sound signal before and after treatment. 1, the signal recorded after deconvolution player (deconvolution signal moves after t = start 0:00). 2, the signal is changing the sample rate recording (is equivalent to a scale change) later playback. 3, after the recorded signal delay 1s, and reduce the rate by half, and then with the original signal are added, then play it.)

线性调频信号的循环自相关函数包络 基于循环平稳理论的，LFM信号的循环自相关函数包络matlab仿真程序(LFM cyclic autocorrelation function envelope based on the cyclic theory, LFM signal envelope of the cyclic autocorrelation function matlab simulation program)

随机网络的仿真计算，用Matlab来实现的源代码。(Stochastic network simulation, using Matlab to implement the source code.)