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this is a matlab code for antenna of near a conducting cylinde and huygens principle.

对基带数字通信的位同步过程进行了仿真，采用Gardner算法，没有用插值。符号用SRRC进行脉冲成形，环路滤波器没有用PI回路，是简单的alfa，1-alfa低通滤波，NCO调整也比较简单。(Baseband digital communications for the bit synchronization process of the simulation, using Gardner algorithm, did not use interpolation. Carried out with SRRC pulse shaping symbols, did not use PI loop filter circuit is a simple alfa ,1-alfa low-pass filter, NCO is also relatively simple to adjust.)

matlab程序： 计算机模拟思想计算概率模型(matlab program )

说明：  Simulation distribution1

利用BP人工神经网络对语音特征信号进行分类(classification of Speech signal )

说明：  基于梯度相似度的图像质量评价方法，发表在2012年TIP国际期刊上(Full reference image quality evaluation)

Matlab源程序代码，用于拟合超二次曲线，曲面的代码，呵呵，与大家一起分享受(Matlab source code for the quadratic curve-fitting, surface code Oh, and that they have enjoyed.)

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用矩形窗设计了一个FIR线性相位低通数字滤波器。截止频率0.5π，阶数为21阶。求出了系统函数并画出了幅频响应。(A rectangular window design with linear phase FIR low-pass digital filter. Cutoff frequency 0.5π, the order of 21 bands. Find the system function and plotted the amplitude-frequency response.)

求解接触刚度，用经典的Hertz方法求解理想情况下 刚度随载荷变化的关系(contact stiffness)