doppler_shif

cours numérique..traitement de signal en bande de base

说明：   empirical formula with kaiser clc clear all fs=1000 fc=250 df=50 r=0.001 f=fc/fs dw=2*pi*(df/fs) a=-20*log(r) n=floor(((a-8)/(2.285*dw))+1) if a>50 b=0.1102*(a-8.7) elseif a>=21 && a<=50 b=0.5842*((a-21)^0.4)+0.07886*(a-21) elseif a<21 b=0.0 end w=kaiser(n,b) for i=1:n if i~=(n-1)/2 hd(i)= (2*f*sin((i-((n-1)/2))*2*pi*f))/((i-((n-1)/2))*2*pi*f) elseif i==(n-1)/2 hd(i)=2*f end end for j=1:n h(j)=w(j)*hd(j) end subplot(3,1,1), plot(w) subplot(3,1,2), plot(h) subplot(3,1,3), plot(h,n)

It is helpful in classifying the maturity stage of cotton.

说明：  8阵列均匀线阵的方向图，很简单的程序，容易看懂(The pattern of 8-element uniform linear array is the simplest program, which is easy to understand)

matlab的一些实验，可通过了解到matlab的使用

小波包程序3，能够对信号进行特征提取，有利于初学者。(This is a wavelet packet program 3，which is useful for the beginners.)

PdfParse 用于从PDF文件中抽取文本数据的示例，支持unicode字符集编码、8进制和16进制编码。(PdfParse used to extract text from a PDF file example of data, unicode character set encoding, octal and hexadecimal encoding.)

说明：  一组图象与视频处理C/C++代码,该软件包可用于Matlab。包括读取AVI和CIF/QCIF视频序列代码，Canny算子，Harris角点检测，全局阈值算法，动态阈值算法等等。(AP as a video processing with C/C code, the software can be used in Matlab. AVI including reading and CIF/QCIF video sequence code, Canny operator, Harris corner detection, and overall value threshold algorithm, dynamic threshold algorithm and so on.)

说明：  数学建模的各种程序，数学建模书上的各种程序，全部编译通过了，可以直接使用(Mathematical modeling of various processes, mathematical modeling procedures on the books, all compiled by, and can be used directly)

Paradigms Theory and Applications using MATLAB