CCDchengxiangzaixianjiance

this is the first chapter of famous neural net tutorial by hugan

高阶谱分析工具箱，有常见的参数模模型高阶谱估计，DOA估计与时延估计 (Higher order spectral analysis toolbox, common parameter-mode model of higher order spectral estimation of DOA estimation and delay estimation)

说明：  仿真了4种常见多径衰落信道，包括无人机信道(The four common multipath fading channel, including the uav channel)

传统的决策树能较好地解决分类问题，但当类的个数增多时，所产生的单一决策树就会变得复杂，同时概括能力降低。 该文采用基于层次分解的方法通过产生多层决策树来处理多类问题。 与传统的单一决策树比较， 基于层次分解的决策树在处理多类问题时有许多的优势。(induction learning,decision tree,id3 ,hiberarchy decomposition)

跳频（占空比为1）2fsk的部分频带干扰误码率计算，这个程序是基于matlab的，自己编的，呵呵(Frequency Hopping (duty cycle 1) 2fsk the partial band interference bit error rate, this procedure is based on matlab, and their series, Oh)

模拟二维空间中TM波的传播过程，当执行TM波的时域有限差分格式时，就能在网格空间中模拟TM波的传播过程。(simulated two-dimensional space TM wave propagation process, the implementation of the TM-wave finite-difference time-domain format, Grid will be in space simulation TM wave propagation process.)

小波滤波器构造 小波滤波器构造 (wavelet filter structure wavelet filter structure wavelet filter structure)

Matlab 编程所用 很好的一本书,如果你想学好Matlab的编程开发，这本书是一个不错的帮手，下载来看看吧。(This book is very useful for the people who want to learn Matlab well.)

通过重心法确定光斑图像的中心。根据个像素的灰度值和所在的位置乘积和总面值作比，进而求得重心。(Through the center of gravity method to determine the center of the image spot. According to the gray-scale pixel value and the location of the product and the total for more than face value, and then get the focus.)

从图片中找出连同区域，保留有三个以上的圆的连同区域(Find out the connection areas, and keep areas with three or more circles)