dd_tools_1_6_1

该源程序代码实现了如：纯ALOHA，扩展ALOHA,CSMA,ISMA等的多径通信协议通信仿真实现，程序结果给出了各个通信协议下传输数据的成功率和时间延迟。(Realize that the source code such as: pure ALOHA, the expansion of ALOHA, CSMA, ISMA and other multi-path communication protocol communication simulation realize, given the results of the proceedings of various communication protocols to transmit data under the success rate and time delay.)

说明：  用matlab做数字滤波器 对滤波因子加窗函数fir滤波因子的设计(Add to the filter window function fir filter design)

实现单纯形法求解最优化问题的步骤，两步法实现，可自由输入参数(Simplex method to achieve optimization step, two-step implementation of free input parameters)

说明：  喷泉码译码过程， MATLAB 编写， BEC信道(Fountain code decoding process, MATLAB preparation, BEC channel)

principal component analysis

K-means算法的实现,通过对没有标记的原始数据进行kmeans聚类得到的分类。(K-means algorithm to achieve)

The PAPR of QAM system is plotted against Complementary cumulative distribution function

此程序是谱聚类中，经典的Ncut算法。用matlab编写的。(This program is spectrum clustering, classic Ncut algorithm.The program uses matlab。)

MATLAB的数字滤波器设计 (MATLAB digital filter design)

文中基于耦合模理论和简化的阶跃折射率单模光纤三层模型的包层模理论，提出了长周期光纤光栅的传输谱特性仿真的主要步骤及 matlab程序实现，为长周期光纤光栅的数值仿真提供了一种简便的方法(Text-based coupled mode theory and a simplified three-step-index single-mode fiber cladding mode theory model, proposed long-period fiber grating transmission spectrum characteristics of the main steps and matlab simulation program implementation, as the value of long-period fiber grating Simulation provides an easy way to)