duelo

说明：  本代码主要用matlab实现图片的高斯滤波和双边滤波，参数可调(This code mainly uses MATLAB to realize Gauss filtering and bilateral filtering of pictures, with adjustable parameters)

针对基于双曲线定位的DV-Hop算法中误差项的异方差性引起的定位误差大的问题，提出了一种基于加权双曲线定位的DV-Hop改进算法。算法分析了基于双曲线定位的DV-Hop算法模型中误差项的异方差性，用加权最小二乘法对异方差性进行纠正，对加权最小二乘法中的权值矩阵进行了推导并得到与跳数相关的最佳权值矩阵，使得误差项满足同方差性，所得估计值更加接近最佳线性无偏估计。仿真实验结果表明，所提算法在节点定位精度上较现有的基于双曲线定位的DV-Hop算法都有一定提高。(Aiming at the problem that the heteroscedasticity of observation errors leads to low locating accuracy in DV-Hop algorithm based on hyperbolic positioning, this paper proposes an improved DV-Hop algorithm which based on weighted hyperbolic positioning. The algorithm analysis the heteroscedasticity of the error term in the model and takes advantage of weighted least square method which corrects heteroscedasticity straightforwardly. Then, the weight matrix related to least hops between nodes is deduced, the estimators thus obtained are more close to the best linear unbiased estimator. The simulation results show that the location performance of the improved algorithm is better than that of the exsiting DV-Hop algorithm which based on hyperbolic positioning.)

说明：  拓扑优化（topology optimization）是一种根据给定的负载情况、约束条件和性能指标，在给定的区域内对材料分布进行优化的数学方法，是结构优化的一种。该程序基于matlab，提供求解约束优化问题的方法(Topology optimization is a mathematical method to optimize material distribution in a given area according to given load conditions, constraints and performance indicators. It is also a structural optimization method. The program is based on MATLAB and provides a method for solving constrained optimization problems.)

说明：  鲸鱼算法，PSO,GA,优化核极限学习机，(Whale algorithm, PSO, GA, optimized nuclear extreme learning machine,)

经验模式分解法算法 发明人法国人frandlin-empirical mode decomposition algorithm inventor Frenchman frandlin

基于unittest的测试用例代码，仅供参考(Unittest-based test case code,for reference only)

说明：  信息学竞赛星火燎原，成为候选队15人之一乃是所有OI选手梦寐以求的理想。每年15篇论文，指引着该竞赛的最前沿动向，可以给予选手们无限的启迪。阅读并理解其中的经典篇目，是无数OI选手进阶的必由之路。(Informatics competition is sparking and becoming one of the 15 candidates is the dream of all OI players. Fifteen papers a year are the latest trend in the competition, which can give infinite enlightenment to the competitors. Reading and understanding the classics is the only way for countless OI players to advance.)

龙珠CS机器人安装程序。龙珠CS真是有趣。-Pearl CS robot installation procedures. Pearl CS is really interesting.

立体视觉方面的介绍和推导PPT，有助于初学者理解掌握多视几何(Introduction and derivation of three-dimensional visual PPT, help beginners understand the multi view geometry)

小狗说话代码，小狗只能说特定的话语，当某些条件满足时，小狗可以叫喊或者说出自己的名字，最后输出的是小狗说的话(Speak code puppy, puppy can only say that the particular words, when certain conditions are met, the puppy can yell or say his name, the final output is a puppy say)