ex9

OF,实际上OF是MCM Multi-CarrierModulation，多载波调制的一种。其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰 ICI 。每个子信道上的信号带宽小于信道的相关带宽，因此每个子信道上的可以看成平坦性衰落，从而可以消除符号间干扰。而且由于每个子信道的带宽仅仅是原信道带宽的一小部分，信道均衡变得相对容易。在向B3G/4G演进的过程中，OFDM是关键的技术之一，可以结合分集，时空编码，干扰和信道间干扰抑制以及智能天线技术，最大限度的提高了系统性能。(OF)

matlab code for image segementation

内有鸢尾花数据的5折交叉验证实验代码，采用的分类器是贝叶斯分类器。(There is a 5-fold cross-validation experiment code for the iris data, and the classifier used is a Bayesian classifier.)

for compression of images using watermarking

有借鉴意义哦，小波包分析提取振动信号中的特征频率，计算晶粒的生长，入门级别程序。( There are reference Oh, Wavelet packet analysis to extract vibration signal characteristic frequency, Calculation of growth, entry-level program grain.)

You can call your own C or Fortran subroutines from MATLAB as if they were built-in functions. MATLAB callable C and Fortran programs are referred to as MEX-files. MEX-files are dynamically linked subroutines that the MATLAB interpreter can automatically load and execute.

论文 Least Squares Loss for Multi-class (task) Learning via the sparse group Lasso penalty 的算法源代码，是sparse+l1+lq,1的稀疏属性选择算法。( Least Squares Loss for Multi-class (task) Learning via the sparse group Lasso penalty Problem min 1/2 || A x- y||^2+ lambda_1* |x|_1+ lambda_2*|x|_{q,1} q=2, infty)

自己用Matlab编写的最优化算法,包括0.618,梯度法,共轭梯度法,罚函数法.(Their own written with Matlab optimization algorithms, including 0.618, gradient method, conjugate gradient method, penalty function.)

扩散的菲克第二定律的数值求解 第一次弄，请大家赐较(Colorific proliferation of the second law of the numerical solution of the first alley, please grant more)

D*lite算法的C++实现，已经在ubuntu linux下面测试通过！(C++ Implementation of D*lite Algorithms)