matlab4

mysql base de donnée

此为灰色模型里的二次拟合预测GM(1,1)模型(This is a grey model of quadratic fitting prediction GM (1, 1) model)

Source code for MD5 in matlab

一本很好的matlab学习书籍，综合了很多的内容，英文版的，对英文又要求( Matlab learning good book, synthesized a lot of content, the English )

function Px = per(x,n1,n2) PER Estimate the spectrum of a process using the periodogram ----------- USAGE Px = per(x,n1,n2) The spectrum of a process x is estimated using the periodogram. x : input sequence n1 : starting index, x(n1) n2 : ending index, x(n2) The periodogram is returned in Px using a linear scale. If n1 and n2 are not specified the periodogram of the entire sequence is computed.

PMSM的仿真模型，该模型完全基于simulink基础库创建。包含了电流环。(PMSM simulation model, which is based entirely on the basis simulink library creation. Contains a current loop.)

初学CS，自己编了很多算法，试试发出来大家一起交流，基于CS的OMP算法(OMP algorithm based on CS)

这个程序详细说明了怎么用极坐标画天线方向图(This procedure specifies how to use the antenna pattern in polar coordinates Videos)

说明：  认知无线电技术的提出是为提高频谱利用率，而认知无线实现的关键技术是频谱感知，众所周知协作检测提高了衰落环境中认知用户系统检测的性能，该文章是基于协作检测提出新的检测方案，利用了双门限方法提高了系统性能，兼顾带宽有限和增强性能两个方面，是基于门限检测的协作检测性能优化的前提。对以后门限优化协作检测非常有用。(In this paper, we employ a double threshold method in energy detector to perform spectrum sensing, while a fusion center in the cognitive radio network collects the local decisions and observational values of the secondary users, and then makes the final decision to determine whether the primary user is absence or not. Simulation results will show that the spectrum sensing performance channels is improved significantly under the proposed scheme as opposed to the conventional method.)

This is qpsk ber curve simulation.