differential-equation-modeling

本程序是一个基于matlab的雷达SAR成像自聚焦算法，对于学习雷达信号处理的人有帮助。(This procedure is a matlab-based imaging radar SAR Autofocus Algorithm for the study of radar signal processing has to help people.)

(2). 采用汉明窗，分段长度L=32，用修正的周期图法进行谱估计，并分析数据长度N，分段长度M对谱估计结果的影响。((2) using Hamming window, segment length L = 32, the modified periodogram method of spectral estimation and analysis of data length N, the length M of the sub-spectrum estimation results.)

柯尔莫哥洛夫熵（Kolmogorov熵，以下简称K熵）是刻划混沌系统的一个重要的量。在不同类型的动力学系统中，K熵的数值是不同的。本程序可以计算kolmogorov熵(Kolmogorov entropy (hereinafter referred to as K entropy) is an important quantity for describing chaotic systems. In different types of dynamical systems, the K entropy is different. This procedure can calculate Kolmogorov entropy.)

用matlab编写的无约束优化的源码，经过调试，都能运行，对数学建模竞赛帮助很大。(Prepared using matlab optimization of the source, through commissioning, to run on the Mathematical Contest in Modeling of great help.)

三个simulink相关文档，对simulink建模过程进行了详细描述，包括用指令设置simulink模型的参数。还有rtw使用介绍。(Three the simulink relevant documents on the simulink modeling process is described in detail, including the use of instruction set simulink model parameters. Rtw use introduction.)

说明：  this file contains the medical image processing. Here, I have to find the preprocessing methods. In this implementation i have to add the salt and pepper noise.

Backpack Genetic Algorithm

层次分析法，直接可以用的matlab程序，包含两个文件(AHP)

《Matlab6.x辅助图像处理》 书中的示例源码(" Matlab6.x-assisted image processing," source book)

Root Cosine Filter BPSK