OFDM

这是一本用matlab编程实现图像处理的教程，有兴趣的同学可以看看。(This is an image processing with matlab programming tutorial, students who are interested can look at.)

Scfig16 function for wavelet analysis

说明：   根据运动合成原理建立了轻质杆在斜抛(包括竖直上抛)运动中质心和端点的运动方程，用动画演示了质心的斜抛运动和两个端点的运动轨迹，并显示了杆在一定时刻的位置。(Established in accordance with the composite theory of the movement in oblique light pole throw (cast on the vertical) movement of the centroid and the equation of motion of the endpoint, animation demonstrates the trajectory of the centroid of Projectile Motion and the two endpoints, and shows the lever in a certainthe location of the moment.)

QFSK加高斯噪声后，在0-10dB信噪比下，误码率曲线绘制(After QFSK plus Gaussian noise at 0-10dB SNR, BER curves plotted)

这是之前上传的Extract_test_IMFCC程序里面调用的子函数，作配合使用，请看清楚再下载(This is one subfunction of Extract_test_IMFCC uploaded before.Since pudn.com cannot upload several functions, they must divided.)

交流位置伺服系统因其存在参数时变、负载扰动以及电机的非线性等缺点， 很难为其建立准确的模型. 模糊（ fuzzy）控制具有无需建立被控对象的数学模型、鲁棒性好等 优点，但稳态精度差. 将模糊控制和PID 控制相结合，设计了Fuzzy-PID 双模控制器. 在论域内 用不同的控制方式分段实现控制，这样就综合了模糊控制和PID 控制的优点，克服了各自的缺 点. 该控制器结构简单、易于实现. 在半闭环交流位置伺服系统上所做的实验表明，采用Fuzzy- PID 双模控制器与采用经典PID 控制器相比，阶跃响应的调整时间减少了33. 7 ，并且无超 调，轨迹跟踪误差减小了47. 2 .(AC servo system because of the presence of parameter variations, load disturbances and non-linear motors and other shortcomings, it is difficult to establish accurate models for fuzzy (fuzzy) control without having to build a mathematical model of controlled object, robustness and good However, steady-state accuracy is poor. fuzzy control and PID control are combined to design a dual-mode Fuzzy-PID controller in the sub-region to achieve control on the different control methods, so that a combination of fuzzy control and PID control advantages to overcome their disadvantages. simply the controller structure, easy to implement. experiments on semi-closed loop AC servo system did show that the Fuzzy-PID controller is compared with the classic dual-mode PID controller, step response The adjustment time is reduced by 33.7 , and no overshoot, tracking error is reduced 47.2 .)

matlab源代码,适用于开发研究,带来很好的学习效果.(matlab resouces for leaners.)

说明：  柯恩类时频分布演示例程，实现信号的二次型时频分布(Cohen Class Time-Frequency Distribution demo routines to achieve signal-quadratic time-frequency distribution)

说明：  序列x(n)的Bartlett法功率谱估计 用matlab实现(sequence x (n) Bartlett power spectrum estimation method used to achieve Matlab)

基于压缩感知的云存储系统状态监测方法1001-0505(2013)02-0296-05(State detection method for cloud storage system based on compressive sensing)