PLS_Toolbox21

《高阶谱分析》源代码，包括高阶谱的计算，谱分析，模拟，等等(Higher-Order Spectral Analysis (HOSA) Toolbox)

自适应陷波，参数可调，迭代达到最理想效果(Adaptive notch, adjustable parameters, the iterations to achieve the best results)

在采样点之间的频率响应是由各采样点的加权内插函数叠加而形成的，因而有一定的逼近误差。该误差大小取决于理想频率响应的形状，理想频响特性变化越平缓，内插值越接近理想值，逼近误差越小；反之，如果采样点之间的理想频响特性变化越陡，则内插值与理想值之间的误差越大，因而在理想滤波器不连续点的两边，就会产生尖峰，而在通带和阻带就会产生波纹。用频率采样法设计的实际滤波器频率响应如图1所示。由图1可知，实际滤波器的阻带衰减取决于内插函数第一旁瓣幅度值的大小，其大小决定了所设计的滤波器的阻带性能。(Interpolation function superimposed between sampling points of the frequency response is weighted within each sampling point and the formation of, and thus have a certain degree of approximation error. The size of this error depends on the shape of the ideal frequency response and the ideal frequency response characteristic change is more gentle, interpolated and more close to the ideal value, the smaller the approximation errors Conversely, if the sampling point between the ideal frequency response characteristics of the steeper the change, and then the interpolated the larger the error between the ideal value, and thus in the ideal filter both sides of the discontinuity point, will produce spikes occurs ripple in the passband and stopband. Actual design frequency sampling filter frequency response is shown in Figure 1. Figure 1 shows, the actual filter stopband attenuation depending on the interpolation value of the size of the first side-lobe amplitude of the function that determin)

小波包分析提取振动信号中的特征频率，包括四元数的各种计算,包括随机梯度算法，相对梯度算法。( Wavelet packet analysis to extract vibration signal characteristic frequency, Including quaternion various calculations, Including stochastic gradient algorithm, the relative gradient algorithm.)

说明：  滑膜变结构控制的matlab仿真程序,学习滑膜变结构控制的基础。(Variable structure control synovial matlab simulation program, learning the basis of variable structure control synovium.)

鱼群算法的matlab工具箱，可在matlab中设定路径进行使用(yuqunsuanfa tool for matlab, fish swarm algorithm matlab toolbox)

线性调频信号的产生线性调频信号的产生线性调频信号的产生(The generation of linear frequency modulation signal )

一个基于级联方式的新型DC滤波器程序，用MATLAB语言编程仿真。(A cascade of new DC-based filter program, the simulation using MATLAB programming language.)

最新台湾中央大学HHT程序；包含一个实例，EMD工具和EEMD工具；可以求瞬时频率(A few examples of how to use these programs are given, with a given dataset “gsta.dat”, which is the annual mean global surface temperature anomaly. In “gsta.dat”, the first column is the time and the second is the corresponding data value.)

Scale invariance in Template matching