sourcecodes

对三维空间梁进行有限元建模和分析，matlab程序实现，涉及坐标变换等。(Beams of three-dimensional finite element modeling and analysis, matlab program, involving such as coordinate transformation.)

模拟退火粒子群算法，简单实用，非常好的程序(Simulated annealing particle swarm algorithm, simple, practical, very good program)

1 SIFT 发展历程 SIFT算法由D.G.Lowe 1999年提出，2004年完善总结。后来Y.Ke将其描述子部分用PCA代替直方图的方式，对其进行改进。 2 SIFT 主要思想 SIFT算法是一种提取局部特征的算法，在尺度空间寻找极值点，提取位置，尺度，旋转不变量。 3 SIFT算法的主要特点： a) SIFT特征是图像的局部特征，其对旋转、尺度缩放、亮度变化保持不变性，对视角变化、仿射变换、噪声也保持一定程度的稳定性。 b) 独特性(Distinctiveness)好，信息量丰富，适用于在海量特征数据库中进行快速、准确的匹配[23]。 c) 多量性，即使少数的几个物体也可以产生大量SIFT特征向量。 d) 高速性，经优化的SIFT匹配算法甚至可以达到实时的要求。 e) 可扩展性，可以很方便的与其他形式的特征向量进行联合。 4 SIFT算法步骤： 1） 检测尺度空间极值点 2） 精确定位极值点 3） 为每个关键点指定方向参数 4） 关键点描述子的生成 本包内容为sift算法matlab源码(1 SIFT course of development SIFT algorithm by DGLowe in 1999, the perfect summary of 2004. Later Y.Ke its description of the sub-part of the histogram with PCA instead of its improvement. 2 the SIFT main idea The SIFT algorithm is an algorithm to extract local features in scale space to find the extreme point of the extraction location, scale, rotation invariant. 3 the main features of the SIFT algorithm: a) SIFT feature is the local characteristics of the image, zoom, rotate, scale, brightness change to maintain invariance, the perspective changes, affine transformation, the noise also maintain a certain degree of stability. b) unique (Distinctiveness), informative, and mass characteristics database for fast, accurate matching [23]. c) large amounts, even if a handful of objects can also produce a large number of SIFT feature vectors. d) high-speed and optimized SIFT matching algorithm can even achieve real-time requirements. e) The scalability can be very convenient fe)

MATLAB5.3精要、编程及高级应用。分三篇，基础篇为MATLAB的基本操作和功能；中级为数值计算和编程和simulink功能；高级为深入介绍simulink系统仿真方法；与信号处理、控制系统分析、系统仿真应用结合的书籍。(MATLAB5.3 essence, programming and advanced applications. Three points, Basics of MATLAB' s basic operations and functions intermediate for the numerical computation and programming and simulink function advanced systems for in-depth introduction simulink simulation and signal processing, control system analysis, system simulation applications with the books.)

非常好的MATLAB入门软件，一定要看哦，非常好的。加油，加油 (Getting very good MATLAB software , be sure to look oh , very good. Come on , come on)

投影寻踪-基于matlab下的程序，绝对实用(Projection Pursuit- matlab program is absolutely practical)

并联有源共模电流抑制方法的matlab仿真，建立仿真模型，分析补偿特性(common mode current inhibition of Matlab simulation, simulation model building, analyzing characteristics compensation)

模拟退火算法源码及相关论文，代码有详细注释，配以论文解释(Simulated annealing algorithm source code and related paper , the code has detailed notes , together with the paper explains)

为了使小波对图像更好的解析，对小波进行了改进(To make the image better wavelet analysis, wavelet improved)

利用matlab对超宽带天线进行建模分析设计(Using matlab modeling of UWB antenna analysis and design)