GPSsignal-modeling-and-simulation

说明：  f-K偏移，是地震成像中用得较多的方法之一。(fK migration, seismic imaging is one of the methods used was higher.)

3D cubic-cell yee space lattice with simple outer boundary conditions (PEC sheets). the time-step relation cdt=d/sqrt(3)

有关matlab的数值计算求导方法，对以后数值计算的求导很实用。(About matlab numerical calculation method of derivation, for subsequent numerical derivation is very practical.)

说明：  该模型可以研究光储充直流微网的稳定性，母线电容参数设计，PI控制器参数设计等(The model can be used to study the stability of optical storage charging DC microgrid, bus capacitance parameter design, PI controller parameter design and so on.)

随机自动分班级排学号软件 一个朋友在中学教书，经常为排班级排学号头痛，于是做了这么一个小软件让朋友用用，反馈感觉上还不错。 本软件适用于小学升初中只有两科成绩,且成绩只有A,B,C三个标号. 说明一下:该随机自动分班级排学号软件, 不仅有有考虑到,成绩的均匀, 还考虑到生源地(即原毕业学校),性别,及班级学生个数的均匀. 一般来说,每个班级的总体都比较均匀 具体的说明，可以运行一下本软件，点一下生成源文件样本，然后参考一下即可。(Random Automatic Class scheduling software school No. A friend of mine to teach in secondary schools, often for the Class Pai Pai Student headache, then to do so, a small software that allows friends to use, and feel pretty good feedback. This software applies to primary and junior high school only two subjects, and the results only A, B, C grade three. Explain: The random Automatic Class No. Pai school software, not only has to take into account, results in uniform, but also taking into account the students (ie the original graduate schools), gender, and class number of the uniform. Generally speaking, each Class are relatively uniform overall specific, you can run like the software, click the source file to generate samples, and then reference click.)

基于MATLBA的无刷直流电机仿真，使用新版MATLAB可以运行,基于MATLBA的无刷直流电机仿真，使用新版MATLAB可以运行(thank you )

matlab code for RCS this file show resuls of RCS in polar diagram

说明：  指派问题 微粒群PSO算法 以时间为优化目标函数(Assignment of PSO PSO algorithm to optimize the objective function of time)

一款利用matlab编写的射线追踪程序，易改易用。(The installation of TTBOX is relatively simple. All you have to do is to create some directories and tell MatLab, where TTBOX is. if it does not already exist, create a directory matlab within your home directory. Copy the TTBOX directory into the matlab directory if it does not already exist, create a file startup.m within the matlab directory Insert the following lines into startup.m: basepath= This should be the path to your home directory! addpath([basepath filesep matlab filesep ttbox ],1) addpath([basepath filesep matlab filesep ttbox filesep support ],1) execute startup within the MatLab command window. MatLab is now ready to execute TTBOX routines. The startup-script will be executed automatically upon start of MatLab. In order to read the online documentation, you have to browse to the doc directory and open the ttbox/doc/ttbox.html file with your web browser (it is recommended to set a bookma)

SAR 点目标仿真经典 适合初学者学习合成孔径雷达(SAR point target)