time-frequency-analysisy

这个资料为数字图像处理技术方面matlab的入门资料，讲述了matlab的数字图像处理工具包的使用，以及基本的图像处理函数.(This information technologies for digital image processing matlab introductory information about the digital image processing matlab toolkit to use, and basic image processing functions.)

一个BP神经网络的matlab程序 (A BP neural network matlab program)

FFT与iFFT的非常好的学习例子，希望对需要的人有帮助(FFT and iFFT a very good learning example, want to enjoy)

基于主元分析(pca)的elman,rbf神经网络的matlab程序,运算时间短,程序简单(Based on principal component analysis (pca) of elman, rbf neural network matlab procedures, computing time is short, simple procedures)

1.纽马克算法，振动分析方法，计算多自由度系统振动响应，位移，速度，加速度 2.用于计算多自由度系统固有频率、固有振型、模态质量、模态刚度矩阵、正则模态向量、受迫响应振动 3.里兹法是一种缩减系统自由度的近似方法，用于多自由度系统的求解 4.庞加莱截面图法，用来对多变量自治系统的运动进行分析 5.频谱图法，用于系统的频域分析 6.线加速度法求解系统振动响应 7.雨流计数法，主要用于工程界, 特别在疲劳寿命计算中运用非常广泛，对载荷的时间历程通过计数的过程反映了材料的记忆特性(1. Newmark algorithm, vibration analysis method to calculate multiple degrees of freedom system vibration, displacement, velocity, acceleration 2. Multi-DOF system for calculating the natural frequencies, mode shapes, modal mass, modal stiffness matrix, normal modes state vector, forced vibration response 3. Ritz method is an approximate method to reduce the degrees of freedom for multi-degree of freedom systems solving 4. Poincare sectional view method for multivariable autonomous motion system are 5. the spectrum analysis method for frequency domain analysis system 6. the method for solving linear acceleration system vibration 7. the rain flow counting method, mainly used in engineering, especially used in the calculation of the fatigue life of a very wide range of load time through the course of the process of counting it reflects the memory characteristics of the material)

说明：  基于互质采样-分段相参积累多项式相位变换的微弱线性调频信号检测算法。该代码的相关论文以oral presentation的形式发表于2018年10月在南京举行的IET国际雷达会议。(Multi-component LFM parameter estimation via order-2 DPT (overlapping and coprime) Author: Dr. Shengheng LIU)

This function plot a series of rects described from the N columns of a matrix 4xN, each column is of the form [x,y,w,h]

This zip contains a simple paper of SPIHT generated streams run length encoded ... later i ll be posting the MATLAB source code also and also SPIHT with Arithmetic coding

这是一个产生混沌时间序列Duffing2吸引子的程序(Duffing2)

仿真psk信道的一篇，PDF格式，内有源代码，完美运行，不信可以试试哦(A channel simulation psk, PDF format, the source code, the perfect run, do not believe you can try oh)