chapter13_GA

OFDM具有很强的抗多径和抗频率选择性衰落的能力，并且可以传输高速数据，这里以DVB_T（2k模式）为例分析其加信道厚的信号频谱及信道对OFDM中频信号的影响。(The purpose of this programme is to provide Matlab code to simulate the basic processing involved in the generation and reception of an OFDM signal in a physical channel and to provide a description of each of the steps involved. For this purpose,we shall use, as an example, one of the proposed OFDM signals of the Digital Video Broadcasting (DVB) standard for the European terrestrial digital television (DTV) service.)

说明：  maltab j求解背包问题 遗传算法(maltab 0-1bag gasuanfa )

模拟实验室中产生的清音和浊音，通过仿真产生清浊音的频谱图，非常有效的对比，可以看出它们之间的差异。(Voiceless and voiced simulation laboratory generated by simulation generated Voicing the spectrum, very effective contrast, you can see the difference between them. )

LDPC的分层NMS算法的matlab仿真程序，包含编码程序、译码程序以及画误码率图程序(NMS layered LDPC algorithm matlab simulation program, including coding procedures, as well as painting BER decoding process diagram program)

是国外的成品模型，毕设内容，高光谱图像基本处理，非归零型差分相位调制信号建模与仿真分析 。( Foreign model is finished, Complete set content, basic hyperspectral image processing, NRZ type differential phase modulation signal modeling and simulation analysis.)

说明：  运用该算法可以很方便的计算出各种计算参数的均值及数据的分类！(It works for multi-dimensional Euclidean distance.)

现代优化源程序，十分有用，包括现代优化算法的实例讲解和源程序(Modern optimization of the source program, very useful)

在研究了超高速OFDM系统传输模型的基础上，对OFDM系统的传输信号结构进行了分析，结合传统的多普勒频移算法，用OFDM信号循环前缀所包含的相对频偏信息设计了实时性较好的多普勒频移估计方法，并分析了多径效应对于循环前缀数据的“污染”效应，对该算法进行了优化，提高了算法的频移估计性能，并对该算法进行了性能验证。(Based on the study ultra-high-speed transmission of OFDM system model, the OFDM signal structure for the transmission system is analyzed, combined with traditional Doppler shift method, the relative deviation OFDM signal with cyclic prefix information contained in the real-time design Doppler shift better estimation methods, and analyzes the " pollution" effect of multipath effects for cyclic prefix data, the algorithm has been optimized to improve the frequency estimation algorithm performance and the performance of the algorithm verification.)

基于累计量的奇异值－总体最小二乘法求AR参数 用奇异值－总体最小二乘法求AR参数 一般最小二乘法求AR参数 根据AR参数和自相关函数以及AR阶数用Cadzow谱估计子求出频谱密度(Based on the cumulative amount of singular value- total least squares method for AR parameter using singular value- total least squares method for AR parameter ordinary least squares method for AR parameter in accordance with AR parameters and the autocorrelation function, as well as the order of AR spectral estimation using Cadzow sub-spectrum density obtained)

基于多相滤波的信道化接收机DDC MATLAB仿真程序。(Based polyphase filter of the receiver channel DDC MATLAB simulation program.)