wlq

一些常用函数汇总,便于初学者模范何学习MATLAB的图像处理函数(a collection of functions，a collection of functions，a collection of functions，a collection of functions，)

说明：  生成第五级的高斯函数,它用来作为uwb的发射脉冲(Gaussian function, it is used as the launch pulse UWB)

例4：在sinc(t)信号中叠加噪声，分析对应频谱 fs=100 采样频率,必须大于两倍基带信号最高频率 ts=1/fs 采样时间间隔 T=2 时间窗大小 ( x=x+0.1*randn(1,N) x=awgn(x,-10, measured ) figure plot(t,x) title( 时域信号图 ) xlabel( t /s ) y=fft(x,N) figure if mod(N,2)~=0 N=N-1 end f=linspace(0,fs/2,N/2) plot(f,abs(y(1:N/2))*2/N) title( 叠加噪声的sinc(t)信号频谱 ) xlabel( f /Hz ) figure y0=y(1:N/2) P=y0.*conj(y0)/N P=10*log10(P) plot(f,P) title( 功率谱 ) xlabel( f /Hz ) )

说明：  客观、合理的评价学生学习状况,这个不是我的论文，是哈尔工工业大学付强和田义的文章，是当时的一等奖论文吧(Objective, reasonable assessment of student learning conditions, this is not my thesis work is the University of Al and Tian Qiang article, was it the first paper)

对最优波束形成准则中的最大信噪比，给出了其Matlab仿真源程序程序。(The optimal beamforming standards to the maximum signal-to-noise ratio, and gives the Matlab source program. )

matlab实现svm，最简单的实例，一步一步的很清楚(matlab implementation svm, the most simple example, a very clear step by step)

《射频电路设计——理论与应用》一书课后习题第三章Matlab程序代码("RF circuit design-- Theory and Application," a book OSCAR Exercise third chapter Matlab code)

此模型为光伏单相发电matlab模型，MPPT算法为扰动观察法。(Photovoltaic power generation MPPT)

LTE--A最新标准912系列，对于研究LTE-A系统非常有用(LTE- A New Standard 912 series, for the study of LTE-A system is useful)

时间计算器：分别输入开始日期和结束日期，能计算两个日期相差几天。(Time Calculator: Enter the start and end dates, it can calculate how many days they are difference.)