Design-of-low-density-parity-check-codes-for-modu

编程仿真连续小推力实现GTO到GEO的三阶段转移过程，其中推力器的推力大小为0.8N，轨道机动的起始点为GTO的远地点。GTO轨道的升交点赤经为0度，近地点角距为90度。 GTO轨道： ph:185km，ah：35786km，i：28.5°，GEO轨道：h：35786km，i：0°。 卫星质量为6600kg，从GTO到GEO，采用5000s的推力器。取地球半径为6378km，g取值为9.8m/s^2(The three stage transfer process from GTO to GEO is realized by simulation and continuous small thrust. The thrust of the thruster is 0.8N, and the starting point of orbital maneuver is the apogee of GTO. GTO orbit RAAN is 0 degrees, 90 degrees for the argument of perigee. GTO orbit: ph:185km, ah:35786km, i:28.5, GEO orbit: h:35786km, i:0. The mass of the satellite is 6600kg, from GTO to GEO, using the 5000S thruster. The radius of the earth is 6378km, and the value of G is 9.8m/s^2)

说明：  MATLAB7辅助控制系统设计与仿真 书中的原码 第3章(MATLAB7 assisted control system design and simulation of the original code book, Chapter 3)

彗星图、填充图、三维曲线图，都是些小程序。呵呵，不好意思。维matlab初学者提供些例子吧。(Comet map, filled with maps, three-dimensional curves are small procedures. Oh, sorry. Victoria matlab beginners you provide some examples.)

基于matlab的自相关提取基频算法（结合了带通滤波，三电平削波）(Autocorrelation matlab-based fundamental frequency extraction algorithm (a combination of band-pass filter, three-level clipping))

OFDM implementation using QPSK

matlab 优化问题 小生境和蚁群算法的结合 能运行(matlab optimization niche and the combination of ant colony algorithm can run)

说明：  little matlab script but still no error

make colorbar in plot figures in matlab adjustable.

this is a code for gui and it contains the matlab language codes and its really working codes.i think it will work for the people who are looking for it

This is a z transform based watermarking algorithm used for copy right protection