xiaobobianhuanshujuyasuo

Calculate the histogram and the entropy of any image. The entropy is calculated using different methods.

说明：  bandlet图像处理工具箱，以及用其进行图像去噪的程序(bandlet Image Processing Toolbox, and use its procedures for image denoising)

自己写的MATLAB程序，用于已知2个单位向量，求它们的旋转矩阵。非迭代法。 另有一个绝对定向程序。(Write their own MATLAB for 2 unit vector, known for their rotation matrix. The iterative method. There is another absolute orientation program.)

golden section method

基于混沌理论构建的信号检测系统具有敏感微弱周期信号和对噪声有强免疫力的特点,用于微弱信号检测领 域优势明显。实验室内研究需要产生包括混沌噪声在内的各种噪声,并叠加微弱周期信号作为微弱信号检测系统的信号 源。介绍一种基于LabVIEW平台并结合Matlab计算模块的混沌噪声发生器,可产生典型的3种混沌噪声:Logistic,Duff2 ing,Lorenz形式。该发生器将LabV IEW易于接口实现和Matlab计算精度高、编程简捷的特点相结合,具有结构清晰、通用 性强、易于实现、使用方便的特点。 (Built based on chaos theory, sensitive signal detection system with weak periodic signal and has a strong immunity to noise characteristics of the area for weak signal detection have obvious advantages. Laboratory studies need to generate, including noise, chaos, including a variety of noise and superimposed weak periodic signal as a weak signal detection system, signal source. Introduction of a platform based on LabVIEW and Matlab calculation module with the chaotic noise generator can produce the typical three kinds of chaotic noise: Logistic, Duff2 ing, Lorenz form. The generator will be LabV IEW easy interface, and Matlab calculation of high accuracy, simple programming features combined with a clear structure and versatility, easy to implement, easy to use features.)

本程序已被本人整理到WORD文档中，编程语言为MATLAB，本文设计的滤波器采用傅里叶级数展开法。模拟的杂波的功率谱密度采用BVURG法，概率密度函数的估计采用直方图估计法，设计参数皆在文档中表明。此程序已经验证是正确可执行的，并能生成图形，值得下载！(This program has been organized into WORD document I, the programming language MATLAB, the filter designed in this paper Fourier series expansion method. Simulated clutter power spectral density using BVURG method, the probability density function is estimated using histogram estimation methods, design parameters are indicated in the document. This procedure has been verified is correct executable, and can generate the graph, it is worth to download!)

matlab的轨道力学子程序，适用于搞航天航空的专业人士学习和使用。(matlab subroutine of orbital mechanics, for aerospace professionals to engage in learning and use.)

包括大地坐标与三维直角坐标系的互相转换两个程序(Including the transform of the geodetic coordinates and three-dimensional Cartesian coordinates )

说明：  精通matlab一书中涉及的程序，很详细。有命令和源代码。(Proficient in the procedures involved in matlab book, very detailed. An order and source code.)

矩形域上的二阶椭圆差分格式，适合偏微分方程的学习，是有限差分格式(this is the equetion about the partial differetial equotion)