Cognitive-radio

基于遗传算法的BP神经网络优化算法,Matlab代码。(BP neural network optimization algorithm based on genetic algorithm, Matlab code.)

create a standard MAC based on a CBC block cipher (64 or 128 bit block). This will produce an authentication code the length of the block size of the cipher.

本科毕业论文，基于非高斯性最大化的盲信号分离方法，适合本科生做毕业设计。(Undergraduate thesis, based on maximization of non-Gaussian signal separation method, suitable for undergraduate students to do graduate design.)

motion退化函数的matlab实现 脚本，自己定参数(Implementation of motion degradation function)

说明：  本文件是一个对车牌号码进行识别的程序加上一些代码，图片希望对大家有帮助(vihicles distingguish)

完整奥村-Hata模型程序，实现了奥村-Hata模型的图像。(Okumura-Hata model for a complete program to achieve the Okumura-Hata model image.)

分别绘制ASCAT，海洋2号和两者共同观测的覆盖率在同一图中(Were plotted ASCAT, Ocean 2 and the coverage of both common observation in the same figure)

基于能量检测的频谱感知.由于实际信道中的多径和阴影效应，单个认知用户频谱感知的性能受到影响，因此需要靠不同用户间的协同频谱感知来对抗多径和阴影效应。本设计要求在文中采用一种协作机制，即两用户进行协作频谱感知，提高主用户的检测率，减少检测时间，并且得到捷变增益。要求给出仿真结果。(spectrum sensing in cognitive radio based on energy detection.As the channels in diameter and shadow, not a single user spectrum of capabilities and therefore need different between a user to the spectrum is perceived as more and the effect. this design for the use of a coordination mechanism, the two users collaborate spectrum, the detection rate of increase and decrease the test of time and get a change requires immediate gain. some emulation. )

混沌时间序列的Volterra级数多步预测研究，混沌理论认为在混沌系统中，初始条件的十分微小的变化经过不断放大，对其未来状态会造成极其巨大的差别。 (Volterra series of chaotic time series multi-step prediction, chaos theory is that in the chaotic system, the initial conditions of very small changes through continuous zoom, its future status will cause a very huge difference.)

牛顿迭代的实时仿真，根据编程可实现迭代，很多次的迭代(Newton iteration of real-time simulation, according to the programming iteration, iteration can be realized many times)