Implementing-FDTD-Tutorial

Interactive smoothing for time-series

说明：  这个程序是使用MATLAB对ofdm中的压缩扩张技术降低PAPR技术的仿真，程序仿了不同u值下的对PAPR的降低程度不同(that is a simulation of papr using matlab ,it is using u_law companding)

巴特沃斯带通滤波器，简单实用，matlab(Butterworth bandpass filter, simple and practical, matlab)

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)

使用matlab来对图像进行边缘检测的方法之一，便于在此基础上进行其他的功能的实现(Using matlab to the image edge detection methods, to facilitate this function based on the realization of other)

求DFT并做出离散函数xn的傅里叶变换图像 (Computing the 24-points DFTs of the two sequences that x1(n)= cos(nπ/6) and x2(n)= cos(nπ/4) using a single 24-point DFT by Matlab )

自适应混沌粒子群算法的matlab程序，有测试函数(Adaptive chaotic particle swarm algorithm matlab procedures, test function)

应用MATLAB语言处理数字信号与数字图像，适合初学者学习(Application of MATLAB language processing digital signals and digital images, suitable for beginners to learn)

说明：  此程序主要用于实现OFDM通信系统的同步，采用线性调频的方法可以克服信道的频率选择性衰落。(The programme is to realize synchronization in OFDM systems)

MIE方法计算金属球双站RCS，RCS随角度的变化(MIE method to calculate the metal ball double station RCS, RCS with the change of angle)