router

matlab在振动信号处理中的应用, 本书主要讲述借助简单、高效、功能强大的MATLAB系统实现振动数字信号的分析处理。书中不仅介绍了MATLAB的基本用法和一些相关的常用命令及函数，还介绍了振动信号分析的基本概念、处理方法，以及使用MATLAB语言编制程序的方法。本书给出了大量的振动信号处理编程实例，以有助于读者快速学习和掌握MATLAB的编程技术，应用于实际的振动信号处理工作之中。(Application of MATLAB in vibration signal processing)

cyclic coding powerpoint

说明：  自制WIFI抛物面天线！实现免费蹭网（多图）(Homemade parabolic antenna WIFI! The realization of free rub Network (multi-map))

opnet网络仿真 清华出的，陈敏编辑，学习opnet的必读的书。主要是opnet Modeler Tutorials 翻译，对于看英语头疼的人来说，阅读非常容易~(OPNET_network_simulation)

美国著名黑客凯文出狱后的大作，本书介绍了各种入侵手法，和案例。（英文原著）(The United States after his release a well-known hacker Kevin s masterpiece, this book introduces all kinds of invasion of practices, and cases. (English original))

this book is image process.

iot security challenge

认知无线电是一种用于提高无线电通信频谱利用率的新的智能技术. 首先简述认知无线电的背景和概念,针 对认知无线电的频谱感知功能,详细地分析基于能量检测的频谱检测方法,在此基础上研究了噪声方差的不确定 性对检测性能的影响. 针对无线信号检测具有本地局域性和能量检测存在信噪比极限的特点,提出一种分布式有 限合作检测机制,推导出基于“OR”规则的有限合作机制的检测概率,并进行Monte Carlo仿真.(Cognitive radio is a radio communications spectrum used to improve the efficiency of the new smart technology. First, the background and outlined the concept of cognitive radio, spectrum sensing for cognitive radio capabilities, a detailed analysis of the spectrum based on energy detection test In this study the noise variance based on the uncertainty of the detection performance. for wireless signal detection with local detection of localized and there is signal to noise ratio limit of the energy characteristics of a distributed cooperative detection mechanism, derived out based on " OR" rules of the detection probability of the limited cooperation mechanism and conduct Monte Carlo simulation.)

一份不太简短的LaTeX教程(中文)，一个德国人写的入门教材，翻译也不错(LaTex teaching)

SAP_ABAP_WebDynpro开发(中文)，编程详细介绍(SAP ABAP WebDynpro program)