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光学课件 第一章 光的干涉 第二章 光的衍射 第三章 几何光学的基本原理 第四章 光学仪器的基本原理 第五章 光的偏振(Optical courseware )

bismilah ya allah skripsi lancar

该书是一本通信对抗专业的实用参考书。系统地介绍了现代抗干扰通信技术(主要是直接序列扩谱和跳频扩谱)和抗干扰通信的检测技术，讨论了每一种基本抗干扰信号类型的干扰技术，包括干扰直接序列扩谱信号、干扰快跳频扩谱信号、干扰慢跳频扩谱信号和干扰直接序列扩谱/跳频扩谱混合信号。该书的读者对象是电子战和通信对抗领域的工程师和科技工作者，也可供通信领域的科技工作者参考。(Content HighlightsAnti-Jam Communications and Electronic Countermeasures. Radio Frequency Propagation. Signaling for AJ Communications. Jamming Techniques. Anti-Jam Signal Detection. Jamming Direct Sequence Spread Spectrum Systems. Jamming Fast Frequency Hopping Systems. Jamming Slow Frequency Hopping Systems. Jamming Hybrid Spread Spectrum Systems.)

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.)

说明：  HTML完全手册,适合新手进阶!是学习HTML必备的书籍(HTML complete handbook for novice advanced! Is necessary to learn HTML books)

详细介绍了利用Parks-McClellan算法设计FIR滤波器(Described in detail using Parks-McClellan algorithm for FIR filter design)

说明：  iot security challenge

Qt，和 wxWidget 一样，它也是一个标准的 C++库。但是它的语法很类似于 Java 的 Swing，十分清晰，而 且 SIGNAL/SLOT 机制使得程序看起来很明白——这也是我首先选 择 Qt 的一个很重要的方面，因为我是学 Java 出身的 :) 。不过，所谓“成也萧何，败也萧 何”，这种机制虽然很清楚，但是它所带来的后果是你需要使用 Qt 的 qmake 对程序进行预 处理，才能够再使用 make 或者 nmake 进行编译。并且它的界面也不是原生风格的，尽管 Qt 使用 style 机制十分巧妙的模拟了本地界面。另外值得一提的是，Qt 不仅仅运行在桌面环境 中，Qt 已经被 Nokia 收购，它现在已经会成为 Symbian 系列的主要界面技术——Qt 是能够 运行于嵌入式平台的。(Qt, and wxWidget, it is also a standard C++ library. But its syntax is very similar to Java' s Swing, very clear, and SIGNAL/SLOT mechanism makes the program seem to understand- and this is my first choice is a very important aspect of Qt, because I was born to learn Java :). However, the so-called " as also Xiao, also lost" , although this mechanism is clear, but its consequences is that you need to use Qt' s qmake program is preprocessed, it can be reused make or nmake to compile. And its interface is not the native style, despite the use of Qt style very clever mechanism to simulate the local interface. Also worth mentioning is that, Qt only run in the desktop environment, Qt has been acquired by Nokia, it has now become the main interface technology Qt Symbian series is the ability to run on embedded platforms.)

协作通信系统中DF协议下的系统仿真，可以实现中断概率的分析。(DF protocol system simulation, collaborative communications system outage probability analysis.)

一些黑客毁坏别人的文件甚至整个硬盘，他们被称为电脑狂人（crackers）或计算机破 坏者（vandals）。另一些新手省去学习技术的麻烦，直接下载黑客工具侵入别人的计算机， 这些人被称为脚本小子（script kiddies）。而真正有着丰富经验和编程技巧的黑客，则开发黑 客程序发布到网站或论坛（BBS）。还有一些人对黑客技术没有丝毫兴趣，他们把计算机仅 仅当做窃取金钱、商品和服务的辅助工具。(Some hackers destroy other people)