网站首页

登录

OFDM_Channel-estimation

于 2012-10-17 发布文件大小:11KB

 0  132

下载积分: 1 下载次数: 157

我要下载

代码说明：

OFDM(正交频率调制)实现多载波调制基本思想是将带宽信道分解成许多并行的窄子信道，是每个子信道的想干带宽，从而实现平稳衰落。搭建了完整的OFDM信道链路系统，运用三种不同的信道估计方法(LS信道估计、DFT信道估计、Improved-DFT信道估计)，并对AWGN理想信道和衰落信道误码情况进行了仿真和比较。(OFDM (Orthogonal Frequency Modulation) multicarrier modulation basic idea bandwidth channel is decomposed into a number of parallel narrow subchannels, each subchannel wanted bandwidth, in order to achieve a smooth fading. Build a complete OFDM channel link system, the use of three kinds of different channel estimated method (LS channel estimated, to the DFT letter Tao estimates, Improved-the DFT letter Road estimated), and AWGN ideal letter Road and fading channel bit error situation conducted a simulation and comparison .)

文件列表：

OFDM_MATLAB
...........\AtoS300.m,142,2010-05-06
...........\AtoS340.m,142,2010-05-06
...........\mimo_chan.p,2387,2010-05-04
...........\OFDM_AWGN_DFT.m,2442,2010-05-13
...........\OFDM_AWGN_DFT_nice.m,2660,2010-05-13
...........\OFDM_AWGN_LS.m,2322,2010-05-13
...........\OFDM_mimo_DFT.m,2617,2010-05-13
...........\OFDM_mimo_DFT_nice.m,2812,2010-05-13
...........\OFDM_mimo_LS.m,2529,2010-05-13
...........\StoA300.m,140,2010-05-06
...........\StoA340.m,140,2010-05-06
...........\程序运行说明.txt,701,2010-05-09

下载说明：请别用迅雷下载，失败请重下，重下不扣分！

发表评论

0 个回复

sync_f
说明：验证LTE同步中使用PSS主同步序列进行频偏估计与使用CP进行频偏估计的性能对比。(Verify the performance comparison of frequency offset estimation using PSS main synchronization sequence and frequency offset estimation using CP in LTE synchronization.)

2021-04-18 21:48:51下载

积分：1
实验2-1_DOA
说明： DOA测向程序，包括遍历的角度误差，随时间变化的角度误差(DOA direction finding program, including traversing angular error, angular error over time)

2019-11-25 17:33:46下载

积分：1
BERcurve_CV_soft2_QA
Computes BER v EbNo curve for convolutional encoding / soft decision Viterbi decoding scheme assuming BPSK. Brute force Monte Carlo approach is unsatisfactory (takes too long) to find the BER curve. The computation uses a quasi-analytic (QA) technique that relies on the estimation (approximate one) of the information-bits Weight Enumerating Function (WEF) using A simulation of the convolutional encoder. Once the WEF is estimated, the analytic formula for the BER is used.(Computes BER v EbNo curve for convolutional encoding/soft decision Viterbi decoding scheme assuming BPSK. Brute force Monte Carlo approach is unsatisfactory (takes too long) to find the BER curve.The computation uses a quasi-analytic (QA) technique that relies on theestimation (approximate one) of the information-bits Weight Enumerating Function (WEF) usingA simulation of the convolutional encoder. Once the WEF is estimated, the analytic formula for the BER is used.)

2008-01-05 08:41:21下载

积分：1
CPFSK
该工程是有关CPFSK（连续相位调制）的完整工程。帧结构包含训练序列、前导码、同步码、数据长度等信息，使用正交调制方式产生CPFSK的信号，生成基带IQ数据。接收端包含帧同步、滤波、解算长度等算法。可实现任意长度字符串的无线发送与接收。工程十分完整喝强大，可直接用于各大SDR平台的验证。(The project is a complete project of CPFSK (continuous phase modulation). The frame structure contains training sequence, preamble, synchronization code, data length and other information, and uses orthogonal modulation to generate CPFSK signals and generate baseband IQ data. The receiver includes algorithms such as frame synchronization, filtering, and calculating length. It can realize wireless sending and receiving strings of arbitrary length. The project is complete and powerful, and can be directly applied to the verification of major SDR platforms.)

2018-06-07 09:14:03下载

积分：1
相控天线方向图
实现相控阵雷达天线波束的形成，可以清楚地看到随相位变化的波形能量分布。(To achieve the formation of phased array radar antenna beam, we can clearly see the waveform energy distribution with phase change.)

2018-06-29 16:16:17下载

积分：1
AddressList
提供通讯录成员的查询、增加、更新及删除等功能。(Provide contacts membership query, add, update, and delete functions.)

2013-09-24 19:26:07下载

积分：1
串口数据绘曲线
本程序是将串口实时接收到的数据，然后将数据进行曲线绘制。(The data received by serial port is plotted in real time.)

2020-06-18 16:00:01下载

积分：1
fangzheng
对OFDM进行基于导频序列的同步的仿真，帧同步，符号同步及载波同步(OFDM based on pilot sequence simulation synchronization, frame synchronization, symbol synchronization and carrier synchronization)

2020-08-08 16:48:32下载

积分：1
Sweepfreq
扫频信号的产生，以及扫频信号的时频分析；(The generation of sweep frequency signal and the time frequency analysis of sweep signal;)

2018-01-18 17:33:19下载

积分：1
check4
LDPC codes 4girth check

2013-09-16 15:34:45下载

积分：1

696524资源总数
103920会员总数
65今日下载