matlab-modeling-algorithm(2)

景振毅《MATLAB7.0实用宝典》光盘源代码。MATLAB是目前最流行的应用于科学和工程计算的高性能软件之一。《MATLAB7.0实用宝典》针对MATLAB7.0版本，由浅入深、循序渐进地讲述如何使用MATLAB的各项常用功能。(Jing Zhen Yi " MATLAB7.0 Utility Collection" CD-ROM source code. MATLAB is the most popular used in scientific and engineering calculations, one of high-performance software. " MATLAB7.0 Practical Collection" against MATLAB7.0 version, Deep step by step on how to use the popular MATLAB features.)

本文通过matlab分析信号在不同采样频率和变换点数的FFT下的频谱图，研究采样频率和变换点数对信号FFT的影响。同时还讨论了信号在不同频带噪声背景下的采样频率和变换点数的选择。(In this paper, matlab sampling frequency of the signal at different points in the FFT and transform under the frequency spectrum, change the sampling frequency and FFT of the signal points. Also discussed the noise signal in the context of different frequency bands and transform points sampling frequency selection.)

在振动台试验后由测得的加速度值两次积分求位移(Acceleration of displacement)

非常完整的关于时频分析的所有程序，包括小波变换，短时傅里叶变换，gabor变换等等(the matlab tools include many programs about time frequency,such as gabor transform,STFT,wavelet transform,and so on )

dc motor project using matlab

　　车辆监测用测速雷达是依据多普勒效应原理实现的。由雷达发出一束微波，遇被测目标（车辆）时微波被反射回来，再由雷达接收反射波。如果目标相对于雷达有距离上的运动，反射波的频率将与发射频率发生差异，而这种差异的大小正比于目标与雷达的相对运动速度。于是，雷达通过检测反射波频率和发射波频率的差，就可以计算出被测车辆的移动速度。本次课程设计是利用离散付里叶变换进行频谱分析，设计数字滤波器组，并对滤波器组加窗降低副瓣，通过频域方法测量速度。(Vehicle monitoring using radar gun is based on the realization of the principle of the Doppler effect. By the radar emits a microwave, in case the measured target (vehicle) when the microwave is reflected back, and then by receiving the reflected radar waves. If the target relative to the radar on a distance of motion, the frequency of the reflected wave and the emission frequency of the difference, and this difference is proportional to the relative target and radar velocity. Thus, by detecting the reflected radar wave frequency and the frequency difference between the transmitted wave, we can calculate the movement speed of the vehicle under test. This course is designed to take advantage of the discrete Fourier transform spectral analysis, digital filter design group, and filter bank windowed lower sidelobes by frequency domain methods to measure speed.)

空间计量 elhorst_model（带中文解释）(Spatial metrology elhorst_model (with Chinese interpretation))

类似matlab的c++库，可以再自己的程序中调用！(this is a C++ library for symbolic mathematical calculations. It is designed to allow the creation of integrated systems that embed symbolic manipulations together with more established areas of computer science (like computation-intense numeric applications, graphical interfaces, etc.) under one roof.)

本程序是经典的无线传感器网络的Leach协议。(The programe is classic la location algrithom.)

m序列产生子函数 gold序列产生子函数 自相关函数和互相关函数计算子函数 调用子函数[s,k,pn]=m(c,b0)产生第二条m序列(function [Rm]=Rm(golda,goldb) 自相关函数和互相关函数计算子函数 N=11 n=2^N-1 Rm(1)=sum(golda.*goldb)/n for k=1:n-1 Rm(k+1)=sum(golda.*circshift(goldb,[0,k]))/n end Rm )