T统计

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.)

book about quantum security and quantum technique , like bb84 and sarg04 and other protocols

情人节表白攻略，大家来试试吧,很有意思的(Valentine' s Day confession Raiders, everyone to try it, very interesting)

DMI信息的读取! 讲解了DMI的相关定义,读取等相关资料(err)

很好的入门案例，英文的，能看懂，对初学者很有帮助(Entry case in English, can read and understand, very helpful for beginners)

简单大方的PPT模板，适用于学生的各种项目答辩、职场人的工作总结等。(Simple and elegant PPT template, suitable for a variety of projects students Respondent, summarizing the work of the workplace.)

北大群论讲义，作为老师讲的讲义，还算通俗易懂。(North group theory lectures, as teacher handouts, fairly easy to understand.)

详细介绍了组合导航系统，主要以惯导系统为主，结合卡尔曼滤波算法设计系统(The integrated navigation system is introduced in detail, which is mainly based on inertial navigation system and combined with Calman filter algorithm design system.)

数字图像处理入门及深入编程学习的核心教材，中英文版本均有，可对照学习，对有意向出国和继续深造的学生尤为适用，内容过大，需分别上传，此为英文版。(Introduction to digital image processing and in-depth study of the core materials, Chinese and English versions are, comparison study, to have intention to go abroad and continue their education students are most applicable, content is too big, need to upload respectively, this is the English version.)

主要描述了MIMO-OFDM系统中的各项技术的介绍以及仿真代码，比如分集技术，无线信道模型、信道估计等。(This paper mainly describes the introduction of various technologies and simulation codes in mimo-ofdm system, such as diversity technology, wireless channel model, channel estimation, etc.)