houfangjiaohui

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.)

Design tools have been developed based on image processing models to design and validate the navigation functions regarding performances and robustness

说明：  matlab使用垂直Sobel算子，自动选择阈值 [VSFAT Threshold]=edge(f, sobel , vertical ) 边缘探测 figure,imshow(f),title( 原始图像 ), 显示原始图像 figure,imshow(VSFAT),title( 垂直图像边缘检测 ) 显示边缘探测图像 使用水平和垂直Sobel算子，自动选择阈值 SFST=edge(f, sobel ,2) figure,imshow(SFST),title( 水平和垂直图像边缘检测 ) 显示边缘探测图像 使用指定45度角 Sobel算子滤波器，指定阈值 s45=[-2 -1 0 -1 0 1 0 1 2] SFST45=imfilter(f,s45, replicate ) SFST45=SFST45>=2 figure,imshow(SFST45),title( 45度角图像边缘检测 ) 显示边缘探测图像 (matlab I=rgb2gray(I0) J0=double(I) [VSFAT Threshold]=edge(f, sobel , vertical ) figure,imshow(f),title figure,imshow(VSFAT),title)

Block matching algorithm,find the most similarity block in the neighborhood.Block matching algorithm,find the most similarity block in the neighborhood.Block matching algorithm,find the most similarity block in the neighborhood.

matlab7图书里面的所有matlab代码，对初学者很有用，可以用来来纳西基本操作，熟悉基本的子程序，或供工程人员进行功能仿真是很的参考(Book inside matlab7 all matlab code, very useful for beginners and can be used to Naxi basic operation, familiar with the basic subroutine, or by project team members to conduct functional simulation is the reference)

有用的matlab数据，大家看一下，或许对你有帮助。(Matlab useful data, we look at, perhaps to help you.)

GMSK的系统框图，simulink建模以及方针(GMSK block diagram of the system, simulink modeling approach)

bp算法C语言和matlab版，主要用于非线性系统的建模与控制，另外还有一个基于PID的BP算法(BPfor C and Matlab,Mainly used for nonlinear system modeling and control )

用MATLAB进行算法仿真的工具箱，很有用！建议下载试！！(Matlab Algorithm Avalability Simulation Tool)

matlab源码，适用于数学建模计算等多功能实现(matlab source code)