paiqan_v57

基于卷积信号的MIMO系统盲信号估计，运用卷积的方法进行盲信道估计(Convolution-based MIMO system, blind signal signal is estimated using the method of convolution-blind channel estimation)

完美非均匀质量载荷压电薄膜，这是一个MATLAB程序，可以运行。(Perfect non-uniform mass loading piezoelectric film, which is a MATLAB program that can run.)

传统的宽带信号中抑制正弦干扰的方法是采用陷波器(notch filter),为此需要精确知道干扰正弦的频率.然而当干扰正弦频率是缓慢变化时,且选频率特性要求十分尖锐时,则最好采用自适应噪声抵消的方法.下图是用一个二阶FIR的LMS自适应滤波器消除正弦干扰的一个方案。该代码实现了以下功能： 1) 借助MATLAB画出了滤波器的误差性能曲面和误差性能曲面的等值曲线； 2） 给出了最陡下降法以及LMS算法的计算公式； 3） 用MATLAB产生了方差为0.05, 均值为0白噪音S(n)，并画出某次采样得到的波形； 4） 根据 2）中的公式，并利用 3）中产生的S(n)，在 1）中的误差性能曲面的等值曲线上叠加画出了采用最陡下降法以及LMS法时H(n)的在叠代过程中的轨迹曲线； 5）用MATLAB计算并画出了LMS法时误差随时间n的变化曲线（对应S(n)的某一次的一次实现）和e(n)波形； 6）在 1）中的误差性能曲面的等值曲线上，叠加画出采用LMS法得到的100次实验中的H(n)的平均值的轨迹曲线； 7）最终对结果进行了分析，具体见压缩包的word文档。 (Wideband signal in the conventional sinusoidal interference suppression method is the use notch filter (notch filter), this requires precise knowledge of the frequency of a sinusoidal interference . However, when the interference frequency sinusoidal changes slowly , and the selected frequency characteristic requirements are very sharp , then best use of adaptive noise cancellation method . following figure is a second-order FIR LMS adaptive filter to eliminate a program sinusoidal interference . The code implements the following functions:   A ) draw with MATLAB error performance of the filter surface and the surface contour error performance curve 2 ) gives the steepest descent method and the LMS algorithm formula 3 ) generated using MATLAB variance of 0.05 with a mean of 0 white noise S (n), and draw a particular sampling waveform 4 ) based on 2 ) of the formula , and use 3 ) generated in S (n), in a ) the error performance curves superimposed on the surface contour pl)

This is a MATLAB code (function) which elects two new nodes each time. Nodes are elected relatively to their distance in term of hop count to the initiator. This code is used by tree construction algorithm in networks modeled as weighted matrix.

14节点电力系统潮流计算前推回代牛顿拉夫逊法(14 nodes Newton Raphson power flow calculation)

说明：  基于机器人工具箱，采用D-H方法的二自由度双轴机械臂正运动和逆运动仿真，并且设计了gui用户界面(Based on the robot toolbox, the forward and inverse motion simulation of the two axis manipulator is carried out by using the D-H method, and the GUI user interface is designed.)

利用matlab进行图像处理后，水印提取(matlab)

canny算子,很有用的一个程序.容易掌握.(a simple and easy algorithm.)

说明：  灰色关联聚类,根据数据的逼近程度来分类 (grey is used to coculte the cluster)

说明：  LTE中文协议，与3GPP TS 36.211-890的技术内容一致。(LTE Chinese agreement with the 3GPP TS 36.211-890 consistent with the technical content.)