guidao

there is many things to say it on this files

The spectrum sensing problem has gained new aspects with cognitive radio and opportunistic spectrum access concepts. It is one of the most challenging issues in cognitive radio systems. In this paper, a survey of spectrum sensing methodologies for cognitive radio is presented. Various aspects of spectrum sensing problem are studied from a cognitive radio perspective and multi-dimensional spectrum sensing concept is introduced. Challenges associated with spectrum sensing are given and enabling spectrum sensing methods are reviewed. The paper explains the cooperative sensing concept and its various forms. External sensing algorithms and other alternative sensing methods are discussed. Furthermore, statistical modeling of network traffic and utilization of these models for prediction of primary user behavior is studied. Finally, sensing features of some current wireless standards are given.

数值方法（MATLAB版）第四版的上机答案 语言是matlab 一般每个题目一个文件夹 主程序一般为main文件(Numerical methods (MATLAB version) fourth edition of the machine language is the answer to every problem a general matlab folder as the main file main general)

power system tools for study of power systems load flow and stability small signal

图像处理中的计算平均梯度的Matlab代码，用于去除图像中的噪声，增强图像信号等功能(The matlab code for computing average gradient)

matlab code for laplacian pyramid

此系统为伺服系统的三环PID控制的MATLAB仿真代码(This system is a three-ring servo system PID control of MATLAB simulation codes)

说明：  matlab均值平滑滤波器（3*3模板）(matlab mean smoothing filter (3* 3 templates))

Description 0.61 DUTY CYCLE 100KHZ FREQ Required Products SimPowerSystems MATLAB release MATLAB 6.5 (R13) Other requirements 0.61 DUTY CYCLE 100KHZ FREQ

自己收集的matlab遗传算法的资料，耐心看完会有收获(Own collection of matlab genetic algorithm data, there will be harvesting the patience to read )