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DVHop
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.)
- 2020-09-20 21:57:53下载
- 积分：1
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truetime2.0英文使用文档-2016
truetime模块使用说明书，2016英文文档版，学习进行网络仿真(TrueTime module use instructions, 2016 English version, learning for network simulation)
- 2018-02-28 22:17:43下载
- 积分：1
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201205141717574901
完整波浪计数 很高的成功率，12345ABC 外汇股市都有一定的分析与操盘(FlatDouble ZigZagTriple ZigZagDouble ThreeTriple Thre)
- 2020-06-25 14:40:02下载
- 积分：1
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ambiger
自己编写的雷达模糊函数及其显示程序，可以比较好控制时延和多普勒达到较好的显示效果，对任何信号都适合(help useful for u)
- 2020-11-16 19:29:40下载
- 积分：1
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: 1, the first "production" box importation of production, "input...
说明：
1、先在“产生式”框中输入产生式，在“输入的符号串”框中输入待分析的符号串，点击“编译”按钮开始根据产生式分析输入的符号串。
2、在“范例”菜单中可以选择预选的产生式和输入符号串范例，有两个范例，其中书上范例为“范例代码2”。
3、“产生式”框中，“显示消除左递归结果”选中时，执行编译后如果“产生式”框内内容没有变化，则原输入的产生式符合LL(1)，否则，“产生式”框内内容将转换为符合LL(1)的文法。-: 1, the first "production" box importation of production, "input string of symbols" input box to the symbol series analysis, Click on the "Build" button to begin production analysis of the input string of symbols. 2, the "paradigm" menu can choose a pre-production series and the importation of symbols example, there are two examples, which book example of "two examples of code." 3, "have a" box, "showed that the elimination of left recursive results" selected, If, after the implementation of compiler "production" box contents have not changed, then the importation of the production line with LL (1), otherwise, "Production" box contents will be converted to meet LL (1) grammar.
- 2022-07-23 04:31:15下载
- 积分：1
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1
说明： r四级联动菜单代码是一款四级联动菜单选择器，数据异步获取，动态(R four-tier action menu code is a four-tier action menu selector, data asynchronous acquisition, dynamic)
- 2019-03-29 08:23:50下载
- 积分：1
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简易网络嗅探器
网络嗅探器在网路安全方面扮演很重要的角色。使用网络嗅探器可以把网卡设置为混杂模式，并可实现对网络上传输的数据包的捕获与分析。次分析结果可供网络安全分析之用，更有可能被用来做一些黑客行为。本文将详细介绍嗅探器的实现原理，并给出一个简单的实例。(Network sniffer plays a very important role in network security. The network sniffer can be used to set the network card as promiscuous mode, and it can capture and analyze the data packets transmitted on the network. The results of sub analysis can be used for network security analysis, and more likely to be used to do some hacker behavior. In this paper, the implementation principle of sniffer is introduced in detail, and a simple example is given.)
- 2017-10-27 20:45:09下载
- 积分：1
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colour detection
Simple colour detection using MATLAB
- 2018-05-09 17:19:56下载
- 积分：1
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这好似一个很实用的一堆软件，大家，拿去用功相互借鉴。
这好似一个很实用的一堆软件，大家，拿去用功相互借鉴。-This is a very practical like a pile of software, U.S., instead learn from each other hard.
- 2022-02-02 00:30:19下载
- 积分：1
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基于Q学习的路径仿真代码
说明： 这是一个关于基于Q学习的路径仿真代码，欢迎交流指正学习。(Path simulation code based on Q-learning, welcome to correct)
- 2020-06-24 22:01:01下载
- 积分：1
