chap5_3f

practicas de siste mas lineals

该程序可以绘出杨大成《移动传播环境》的7.2.1.1小节的等距离法实现经典功率谱密度，自相关函数，以及自相关函数均方差。文件中含m文件以及绘出的jpg文件。(The program can draw POSTS " mobile communication environment" section of the equidistance method 7.2.1.1 achieve the classic power spectral density, autocorrelation function, and the autocorrelation function of MSE. M file containing the jpg file and draw the file.)

信息隐藏与数字水印学习资料，很好的学习信息隐藏原理以及数字水印的基本组成(Information hiding and digital watermarking learning materials, learning good information hiding principle and the basic components of digital watermarking)

MATLAB命令大全 挺管用的，具体看看吧，有实体书来着

The modeling and attitude stabilization control problems of a four-rotor vertical takeoff and landing unmanned air vehicle (UAV) known as the quadrotor are investigated.The quadrotor’s attitude is represented by the unit quaternion rather than Euler angles to avoid singularity problem. Taking dynamical behavior of motors into consideration and ignoring aerodynamic effect, a nonlinear controller is developed to stabilize the attitude.The control design is accomplished by using backstepping control technique.The proposed control law is based on the compensation for the Coriolis and gyroscope torques. Applying Lyapunov stability analysis proves that the closed-loop attitude system is asymptotic stable. Moreover, the controller can guarantee that all the states of the system are uniformly ultimately bounded in the presence of external disturbance torque.The effectiveness of the proposed control approach is analytically authenticated and also validated via simulation study.

这是一个矢量量化的simulink的仿真程序，通过smulink来实现多级矢量量化。(This is a vector quantization of the simulink simulation program, through smulink to realize multi-stage vector quantization.)

just for testing to upload ,,is there anyone have about document clustering , plz help me plz

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.

windmill simulink for matlab simulation for project

滤波反投影的CT图像重建算法、人脸识别中核心算法(Filtered back-projection of the CT image reconstruction algorithm, the core algorithm for face recognition)