EM

协作频谱感知虽然可提高系统的感知性能， 但随着感知节点数目的增加， 系统资源的占用越来越多， 系统传输效率下降． 分析了协作频谱感知方法的感知性能， 得到协作频谱感知的感知性能与感知节点数目和接 收信噪比之间的关系， 提出了一种新的次级用户节点的选择方法， 该方法有效保证了所选择节点的感知性能， 仿真验证了该算法的有效性和可靠性．(Although the cooperative spectrum sensing can improve the perceived performance of the system, but with the perception of the number of nodes increases, more and more system resources, the system transmission efficiency decreased. Cooperative spectrum sensing method of analysis of the perceived performance of collaborative spectrum sensing by the perception of performance and perception of the number of nodes and the relationship between the received SNR, a new secondary user node selection method, which effectively guarantee perceived performance of the selected node, the simulation proves the validity and reliability.)

利用matlab对暂态信号进行短时能量分析，频谱分析，以及短时傅里叶变换。(Use of matlab for short-term energy of the transient signal analysis, spectrum analysis, and short time Fourier transform.)

3 fisrt parts are: Download the file Square.tif and answer the following questions: i. Smooth the image with a 3 􀵈 3 spatial filter. ii. Smooth the image with an implementation of Gaussian filter in frequency domain. Change the bandwidth of the filter and show how these changes affect the result.

Stephen J.Chapman《MATLAB编程（第二版）》,希望对大家有所帮助。(Stephen J. Chapman )

说明：  混沌理论中的李雅普诺夫指数计算方法，基于matalb软件编写 含有部分注释(Chaos Theory in the Lyapunov exponent calculation methods, based on software development, containing part of matalb Notes)

左右手运动想象数据处理相关程序。借鉴一下！(The left and right hand motor imagery data processing program. Learn from you!)

BP神经网络控制的一个源程序，实现对非线性时变系统的PID自整定控制(BP neural network control of a source, to achieve self-tuning PID control for nonlinear time-varying systems)

This paper is based on emotion recognition of speech signals. Recognizing person s emotional state is an important task.

collinearity diagnostic code for matlab

阵列信号处理中的DOA估计的MATLAB程序 MUSIC算法 (failed to translate)