ltfat-0.94

美国76‘标准大气层模型，包括压力，音速、大气密度等特征(United States 76 standard atmospheric model, including the pressure, the speed of sound, density and other characteristics of the atmosphere)

leach algorithm for wsn

基于雷达一维距离像的目标识别，采用最大相关系数算法，是最简单的基于HRRP的目标识别算法，适合新手。(Radar HRRP target recognition, the maximum correlation coefficient algorithm is based on the most simple HRRP target recognition algorithms, suitable for the novice.)

相控阵雷达的最优分区搜索算法 (Search algorithm for optimal partition of phased array radar)

将小波滤波方法与VMD算法结合，提取故障信息(Wavelet and VMD algorithm are combined to extract fault information)

pid控制仿真,基于matlab的一个PID的程序，打开就可使用(pid control simulation, based on a PID matlab program, ready to use)

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)

自己写的多分辨率SVD函数，普通SVD也包含在内，采用类似小波多分辨率分析进行SVD降噪、降维，奇异点求解(Multi-resolution SVD function, using wavelet-like multi-resolution analysis for SVD noise reduction, dimension reduction, singular point solution)

说明：  ERA模态识别，该算法可以与自然激励技术合用已识别结构模态参数(Era modal identification, which can be used with natural excitation technology to identify structural modal parameters)

本代码为IEEE S_V信道的仿真文件！通过修改相应的参数 还可成为其他三种SV信道(This archive is based on ultra-wideband radio all the simulation code book! Editor Ge Lijia)