without_protection

a very useful Matlab course with examples and implementations.

[114.rar] Spectrum analyzer with USRP, GNU Radio and MATLAB (2009-09-14, matlab, 327KB, 68次) [USRP_Documentation.zip] usrp的全面介绍，接口介绍，工作原理，以及如何对它进行编程 (2010-12-17, Python, 720KB, 62次) [bbn_80211_trunk.zip] USRP（通用软件无线电）上实现的802.11：bbn80211，经测试在gnuradio3.1.1上通过（可以正常收发）(Universal Software Radio Peripheral (USRP) is a range of software-defined radios designed and sold by Ettus Research and its parent company, National Instruments. Developed by a team led by Matt Ettus, the USRP product family is intended to be a comparatively inexpensive hardware platform for software radio, and is commonly used by research labs, universities, and hobbyists.[1])

利用混沌序列与传统的加密算法融合，实现对数据的加密解密(Chaotic sequence fused with traditional encryption algorithms to achieve the data encryption and decryption)

三乘四二维数组 求所有元素中最大值，这个程序很简单的，大家看看就好(Three in four two-dimensional array for all elements in the maximum)

硬件开发磁光效应与声光效应Hardware development magneto-optical effect and sound and light effects(Hardware development magneto-optical effect and sonoluminescence Hardware development magneto-optical effect and sound and light effects)

后向差分法求解分数阶方程，源程序，现在日趋火爆，有学术价值(backward difference method to solve fractional derivation equation)

example of matlab,optimization method which is used with different model.it will be useful for whom they want to learn Matlab by themselves8

Matlab编写的Jakes信道模型，接口参数定义见程序(Matlab prepared Jakes channel model, see the definition of interface parameters of procedures)

无线传感器网络定位用到的无线传输模型 Regular Model, Logarithmic Attenuation Model, DOI Model, RIM Model (Wireless sensor network localization using wireless transmission model, Regular Model, Logarithmic Attenuation Model, DOI Model, RIM Model Achieve functional distance and transmission attenuation swap ~~~~~~~~~~~~~~~~~~~~~~Regular Model~~~~~~~~~~~~~~~ In this model, the radio range is a circle ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ReceivedSignalStrength=SendingPower-PathLoss e.g, RSS=Pt-Pl(d0)-10*η*log10(dist/d0) Pt:transmit power pl(d0):the pass loss for a reference distance of d0 ηis the path loss exponent above parameters are saved in ../Parameters_Of_Models.mat dist:distance between sender and receiver(m) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ typical value:Pt=0-4dBm(max),Pl(d0)=55dB(d0=1m),η(2~4)=4(indoor,outdoor) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~Logarithmic Attenuation Model~~~~~~~~~ In this model, the radio range is a circle ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ReceivedSignal)

说明：  编写画出N(1,1/9)的概率密度和概率分布函数图形的MATLAB程序，并给出计算结果。(Prepared to draw N (1,1/9) of the probability density and probability distribution function of the MATLAB graphics program, and gives results.)