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太阳同步轨道仿真一周期内卫星星下点轨迹图 (During the week of sun-synchronous orbit satellite nadir simulation trajectories)

帝王蝶优化算法,一种新的元启发式优化算法！(In nature, the eastern North American monarch population is known for its southward migration during the late summer/autumn the northern United States and southern Canada to Mexico, covering thousands of miles. By simplifying and idealizing the migration of monarch butterflies, a new kind of nature-inspired metaheuristic algorithm, called Monarch Butterfly Optimization (MBO), a first of its kind, is proposed in this paper. In MBO, all the monarch butterfly individuals are located in two distinct lands viz. Southern Canada & northern United States (Land 1) and Mexico (Land 2). Accordingly, the positions of the monarch butterflies are updated in two ways. Firstly, the offsprings are generated (position updating) by migration operator, which can be adjusted by the migration ratio. It is followed by tuning the positions for other butterflies by means of butterfly adjusting operator. In order to keep the population unchanged and minimize fitness uations, the sum of the newly-generated but)

getting analog signal from discrete using matlab

matlab图像处理求取叶片面积，包含去噪，二值化，连通域标记，去除小面积( MATLAB image processing to obtain blade area, including denoising, two value, connected domain labeling, removal of small area )

说明：  Maltab在数学建模中的应用（第一版）_卓金武等.part1(Maltab in Mathematical Modeling (1st Edition)_Zhuo Jinwu et al.)

说明：  计算香浓信息熵，方便快捷的matlab代码，可以简单直接调用(Calculated Shannon information entropy, convenient matlab code can be simple and direct calls)

matlab中的libsvm工具包，是smo支持向量机算法，可用于解决非线性的回归问题。区别于最小二乘支持向量机。(Matlab libsvm Kit is to smo support vector machine algorithm that can be used to solve nonlinear regression problems. Different from the least squares support vector machine.)

3－1 型sigmoid网络的matlab原程序，可以直接运行(3-1 type sigmoid network matlab original procedures, can be directly run)

this is about matlab code for convolutional codes

说明：  针对tecplot导出的dat（point格式）文件进行处理(program(matlab) for data file exported by Tecplot,the data structure is POINT.After process data file,load the new file in the Tecplot.)