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本文件为学习视频，希望对matlab的学习者有用。(This document is learning video, hope to be useful matlab learners.)

matlab绘制三维Hilbert谱程序，保证可用。上传文件采用的是.txt形式，实际使用时只需要将后缀改为.m即可在matlab中运行。(matlab draw three-dimensional Hilbert spectrum procedures to ensure that available. Upload file uses a .txt form, the actual use of the suffix to .m only need to be run in matlab.)

说明：  本书为国外经典Matlab电子书籍。本书详细介绍了Matlab编程的基本原理和方法。是初学者的最佳指导用书。(Matlab book e-books for foreign classics. Matlab programming book details the basic principles and methods. Is the best guide book for beginners.)

有关matlab的信号处理资料，包括滤波、去噪等，每个类型有具体的解释和例子！(The matlab signal processing, including filtering, denoising, each type has a specific explanation and examples!)

用来解数独游戏的程序，适合matlab入门者学习参考。(The program to solve Sudoku.)

用matlab编写的图像特征提取程序，其中包括一个提取8维HSV颜色直方图特征的函数，一个可以批量处理图像的主程序。(Prepared using matlab image feature extraction procedures, including an 8-dimensional HSV color histogram extracted feature functions, one of the main program can batch process images.)

此程序的功能为对采集到的信号进行小波阈值去噪，阈值为改进阈值。(the program is used for wavelet denoise)

caponback自适应波束形成 array beamform(caponback array beamform)

说明：  最大类间方差法又称otus方法，是日本学者大津展之在最小二乘法原理基础上提出来的，其本质是一种阐值分割方法。 (Otsu method, also known as otus method, Otsu, Japan scholars in the development of the least squares method based on the principle put forward by its very nature is a kind of illustrates the value of segmentation.)

MATLAB finite element code