PronyAnalysis

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)

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)

数字信号处理基于matlab实现的很好的电子书，里面含有大量的实例和讲解，不容错(Matlab-based digital signal processing to achieve a good e-book, which contains a large number of examples and explanations, is not fault-tolerant)

Calculate the correlation dimension of the matlab program.

说明：  2机5节点电力系统潮流计算算例，可以作为学习潮流计算的案例(The power flow calculation example of 2-machine 5-bus power system can be used as a case of learning power flow calculation)

跟数据降维有关的matlab 源码 看清题目选择源码(dimensionality reduction of matlab code)

IIR低通滤波器的matalab实现程序。(IIR low-pass filter matalab implementation process.)

实现加权最小二乘拟合，经典的系统辨识方法，很管用(Achieve a weighted least-squares fitting, classical system identification methods, it is useful)

说明：  matlab主要函数指令表，按功能分类，非常方便好用的。(The main function matlab instruction sheet, according to the functions of classification, very easy-to-use.)

说明：  压缩感知中的迭代恢复算法，是匹配追踪的一种变形。Cosamp稀疏恢复算法。(Iterative restoration in compressed sensing algorithm is a variant of matching pursuit. Cosamp sparse recovery algorithm.)