网站首页

登录

OFDM_Channel-estimation

于 2012-10-17 发布文件大小:11KB

 0  308

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

05441004
Multiple input multiple output techniques combined with orthogonal frequency division multiplexing (MIMO-OFDM) provide a promising approach for wireless systems. However, a serious drawback of the OFDM system is the high peak-toaverage power ratio (PAPR), which may severely affect the power efficiency of RF power amplifiers. In this paper, we propose a simple method to reduce the PAPR of MIMO-OFDM signals based on the use of unused subcarriers. Instead of processing the signals at each transmitter separately, a peak cancelling signal is generated at one antenna and is then applied to all the others with only simple modifications. Simulation has shown that a minimum 2 dB reduction in PAPR can be achieved for all transmit signals using this approach. As the signal processing is nearly all done at a single transmitter, repetition of the operations at each transmitter is avoided, and therefore the overall cost of the system can be significantly reduced.

2011-11-05 01:46:42下载

积分：1
paper4
Interference-Free OFDM Rethinking OFDM for Interference Networks with Inter-Symbol Interference

2016-10-07 09:50:31下载

积分：1
SSC_V5i11
Ethercat协议栈代码示例,基于C语言，已经调试通过(The example for Ethercat slave protocol)

2021-04-18 13:08:52下载

积分：1
Threads-and-chat-program-example
有客户端的聊天软件，可实现网络通讯，对于了解网络编程有帮助(A client chat software, network communications, network programming help for understanding)

2013-10-28 09:33:58下载

积分：1
Hilgraeve-HyperTerm-5.0
full source to hilgraeve HyperTerm 5.0 that is shipped with windows

2021-04-23 14:08:48下载

积分：1
PM3267_SM_PHILIPS_EN
100 MHz Dual-Channel Oscilloscope PM3267/PM3267U

2009-07-14 08:12:14下载

积分：1
不同信号
不同信号的循环谱（AM,BPSK,BFSK,DME等）可以直接使用，来分析信号的循环平稳特性。(The cyclic spectrum of different signals (AM, BPSK, BFSK, DME, etc.) can be directly used to analyze the cyclostationary characteristics of signals.)

2018-05-02 15:39:36下载

积分：1
MIMO
说明：基于和均方误差的MIMO中继联合预编码算法的误码率仿真(Error rate simulation of joint precoding algorithm for MIMO Relay Based on sum mean square error)

2019-12-17 22:48:50下载

积分：1
PCM编码解码matlab 代码
说明： PCM编码译码的matlab代码，设一个输入量，对其进行通信原理仿真。(The MAT code of the PCM code decoding, set an input quantity, and simulate the communication principle.)

2019-01-26 20:47:00下载

积分：1
ofdm_channel_estimation
说明： ofdm qpsk 添加循环前缀信道估计补偿与均衡信号星座图(OFDM QPSK add cyclic prefix channel estimation compensation and equalization signal constellation)

2019-06-11 10:57:40下载

积分：1

696516资源总数
106914会员总数
0今日下载