fig1_19

时频分析工具箱，大家可以借鉴一下DiscreteTFDsDiscreteTFDs(The time-frequency analysis toolbox, we can learn from you DiscreteTFDsDiscreteTFDs)

运用果蝇算法求解FOAGMNN模型程试，代码很详细，感兴趣的人可以看一下(Try using drosophila algorithm FOAGMNN model range, the code is very detailed, interested people can have a look)

数字信号处理及MATLAB实现__第二版__学习辅导与习题详解_余成波，杨菁，杨如民主编_清华大学出版社_2010.07_(Digital signal processing and MATLAB to achieve the second edition __ __ _ Detailed study counseling and exercise Yucheng Bo, Yang Jing, Yang Rumin editor _ Tsinghua University Press _2010.07_)

ransac程序，在他人的基础上改进，增进了速度，经过测试，可直接应用于遥感影像匹配去除误差较大点，希望对大家有用。(ransac program, others based on improvements and increased speed tested, can be directly applied to the remote sensing image matching remove errors larger point, and hope to be useful.)

MATLAB GUI设计学习手记（第二版）源程序 第9章 本书推荐的学习方法： 1）若您是一个MATLAB初学者，且有充裕的时间来学习GUI设计，您可以从本书的第1章开始循序渐进地学习。 2）若您是一位MATLAB初学者，且时间非常紧迫，建议您先学好第1章，然后依次学习第4章、第5章和第6章，其他章节请根据项目需要有选择性地学习。 3）若您已经掌握了MATLAB的基础语法知识，有一定的MATLAB编程基础，也请浏览一下第1章的内容，尤其是专题分析部分。然后先学习本书第4、5和6章，其他章节请根据项目需要有选择性地学习。 4）若您是一位MATLAB GUI方面的专家或老师，您可以将本书作为一本教学的参考书，本书内容全面、讲解详实、代码精炼，是不可多得的GUI宝典。 (MATLAB GUI design learning Hearts (second edition) source learning methods recommended in Chapter 9 of the book: 1) If you are a MATLAB beginners, and there is plenty of time to learn GUI design, you can start from Chapter 1 of the book The step-by-step learning. 2) If you are a MATLAB beginners, and the time is very tight, it is recommended that you first learn to Chapter 1, followed by learning Chapter 4, Chapter 5 and Chapter 6, in other sections based on project needs selective learning . 3) If you have mastered the basic grammar of the MATLAB, the MATLAB Programming Fundamentals, please visit the Chapter 1, in particular thematic analysis section. First learning book chapters 4, 5 and 6, then the other chapters selective learning based on project needs. 4) If you are an expert or teacher of a MATLAB GUI, you can book as a teaching reference books, the book is comprehensive, explain the detailed, refined code, is a rare GUI canon.)

小波降噪、时频分析等方法，系统地研究航天电子设备多余物噪声检测过程中各操作变量和微粒物理参数对声波频谱的影响。通过单因素试验，详细分析了微粒粒径、振动力学条件中加速度和频率等3因素对声音信号频谱分布的影响规律，比较了短时傅里叶变换和小波变换的特点。该结果为进一步识别多余物微粒的参数提供了指导依据(the complexity of the material interaction and the properties of the particles themselves make the received signal difficult to analyse. This paper based on particle collision sound wave mechanism, using the methods of wavelet de-noising, time-frequency analysis and so on, this paper systematically studies the influence of various operating variables and particle physics parameters on the sound spectrum in the process of detecting the noise of aerospace electronic equipment. Through the single factor test, the influences of the three factors such as acceleration and frequency on the spectral distribution of the sound signal are analyse in detail, and the characteristics of the short-time Fourier transform and the wavelet transform are compared. The result provides a guideline for further identification of the parameters of the extraneous particles.)

说明：  从别的地方下载的一个源文件，PLL希望能帮到你(Download from somewhere else, a source file, PLL hope you can help)

语谱图的实现过程，对于初学者有很大的帮助(Spectrogram of the realization of the process, very helpful for beginners )

This MATLAB Code plot the aperture efficiency Vs the subtended angle. The user determine the value of n and the code plot and tell what is the angle value that achieves max efficeiency and the value of this efficiency.

原理：乘同余法产生随机数来生成均匀分布、瑞利分布、正态分布，压缩包包括3个分布的Matlab源代码(Principle: multiplicative congruential method to generate random numbers to generate uniformly distributed ，Rayleigh distribution and normal distribution.This package includes three distribution of Matlab source code.)