ass3A

因子分析可在许多变量中找出隐藏的具有代表性的因子。将相同本质的变量归入一个因子，可减少变量的数目，还可检验变量间关系的假设。(Factor analysis can be found in many variables hidden with a representative factor. The same nature of the variables included in a factor, can reduce the number of variables, but also to test the relationship between the hypothesis.)

一个师兄的毕设，空间目标识别，采用PM算法，可以实现模式识别领域的数据的分类及回归，对于初学matlab的同学会有帮助，应用小区域方差对比，程序简单，感应双馈发电机系统的仿真。

function total_length=text_length_num(file_cell) total_length=0 for i=1:length(file_cell) y1=char(file_cell(i)) for j=1:length(y1) if(y1(j)== > ) got=j-3 end end y= for k=1:got y(k)=y1(k) end [a,b,c,d]=fileparts(y) FileName=[b c] fid=fopen(y) total_length_char=0 while 1 tline = fgetl(fid) if ~ischar(tline), break,

一个相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，上下变频，高斯信道建模，FFT，PAPR抑制，各种同步，解调和解码等模块，并统括系统性能的仿真验证了系统设计的可靠性。(OFDM： coding modulation IFFT AWGN Mode FFT ……)

小世界网络的matlab仿真文档，用于复杂网络研究(Small world network of matlab simulation document, used for complex network of research)

自适应中值滤波器的代码，最大9窗口和3*3标准中值滤波窗口结果对比(The adaptive median filter code, up to nine 3* 3 window, and the result of comparison of the value of the standard filter window)

说明：  图像特征提取，计算图像的7个Hu不变矩特征，matlab例程(Seven Hu invariant moments features of images)

说明：  使用Splitting算法和GLA算法实现对图像的矢量量化及重新编码和重建。(Vector Quantization:To generate a 16-codeword codebook using Splitting Algorithm and GLA,then use this codebook to code the training image and reconstuct it.)

用matlab实现的,空时分组码和普通天线的性能比较(Using matlab to achieve, space-time block codes and the general antenna performance comparison)

2fsk的调制与解调，matlab编写，绝对正确。(2fsk modulation and demodulation, matlab prepared, absolutely correct.)