yuanchengxu

这个程序除了接收机同步、信道编码没有加入外，基本上反映了一个OFDM系统的特性： 1. qpsk/16qam/64qam映射、解映射 2. OFDM调制解调（循环前缀，FFT等） 3. 非整数采样时刻多径时延的多径信道 4. Rayleigh或者Rician多径信道 5. 信道的连续时变（非block fading） 6. 线性插值信道估计 7. FFT变换域插值信道估计(In addition to this program receiver synchronization, channel coding have not joined, the basically reflect the characteristics of an OFDM system: 1. Qpsk/16qam/64qam mapping, mapping solution 2. OFDM modulation and demodulation (cyclic prefix, FFT, etc.) 3. Non- integer sampling instant multi-path delay of multi-path channel 4. Rayleigh or Rician multipath channel 5. a continuous time-varying channel (non-block fading) 6. linear interpolation channel estimation 7. FFT transform domain interpolation channel estimation)

说明：  本源码实现遗传算法，用于RA准则下的多用户OFDM自适应资源分配(The source code implements genetic algorithm for multi-user OFDM adaptive resource allocation under RA criterion)

动力模态分析，气动分析用的，一些方法的代码，希望大家有用(Dynamic modal analysis)

说明：  数字信号处理，利用matlab语言仿真，对信号进行滤波。(Digital signal processing, using MATLAB language simulation to filter the signal)

This code about how to draw hexagonal cell with base station and user.

OBJ文件读取程序：可以读取ASCII格式OBJ后缀的3D图形文件中的数据信息，并显示在屏幕上(a MATLAB program which gets the name of an ASCII OBJ file from the user, reads the 3D graphics information stored in the file, and displays the structure on the screen)

遗传算法改进的bp神经网络精准预测符合数据(Precision prediction coincidence data of BP neural network improved by genetic algorithm)

自适应动态规划实现，详细步骤，可以一起交流学习(Realization of adaptive dynamic programming)

六阶状态空间模型，同步发电机模型和网络负载模型，可用于发电机励磁系统控制仿真(Sixth-order state space model, synchronous generator model and network load model can be used to control simulation of generator excitation system)

基于ICP的 3D 点云拼接,main.m是主程序(Based on ICP' s 3D point clouds registration, main.m is the main program)