SignalsandSystemswithMATLAB

spectrum of signal comminucation field

matlab实现iir滤波器。iir数字滤波器有显著特点，dsp运行速度快(matlab iir filter implementation)

ds cdma matlab reciever

Qpsk moduation scheme described here in matlab code

本人自己做的三篇数学建模论文 一个是基于主成分分析的人口增长预测 一个是基于排队论的高速公路收费口的设置 一个是关于航班的(I own the three papers of mathematical modeling is based on principal component analysis of a population forecast is based on queuing theory, a highway toll gate, setting one on the flight)

简易四则运算计算器，使用时需将.m和.fig文件放到matlab工作目录下（本人使用的是R2013，放到bin文件夹即可，其他版本放到对应文件夹，有的是work文件夹），然后在命令窗口输入.m文件的文件名，即可显示一个简易计算器界面。有0-9九个数字供点击输入数，有重置和正负号按钮，界面简洁，功能耐用(Simple arithmetic calculator should be used with the. M and. Fig file into matlab working directory (I use the R2013, into the bin folder to the other versions into the corresponding folder, some work folder) , and then in the command window. filenames m file to display a simple calculator interface. 0-9 nine figures for the number of click enter, and the sign has reset button, the interface is simple, functional and durable)

说明：  主要指令：butter（产生巴特沃斯滤波器）；freqz（绘制幅频、相频曲线）；zplane（绘制零、极点图）；ss2zp（状态方程变零、极点）；zp2tf（零、极点变分式多项式）。(Main instruction: butter (produced bart wo filter) Freqz (draw amplitude frequency, phase frequency curve) Zplane (draw zero, poles chart) Ss2zp (state equation is zero, poles) Zp2tf (zero, pole change fraction polynomial). )

无线传感器网络中节点定位算法MDS-MAP算法的改进及matlab实现(Wireless sensor network node localization algorithm MDS-MAP algorithm and matlab to achieve)

本文章教你如何将海量数据导入到matlab工作空间，方法简单，易懂(This article will teach you how to import huge amounts of data into matlab workspace, simple, easy to understand)

code of Peak Signal-to-Noise Ratio