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ofdm
摘要:正交频分复用(OFDM)是第四代移动通信的核心技术。该文首先简要介绍了OFDM基本原理,重点研究了理想同步情
况下,保护时隙(CP)和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对OFDM系统性能的影响。在给出OFDM系
统模型的基础上,用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序。最后给出在不同的信道条件下,保
护时隙、信道估计方法对OFDM系统误码率影响的比较曲线,得出了较理想的结论。
(O FDM is the key techno logy of 4G in the field of mobile comm unication.In this article O FDM
ba sic p rinc ip le is briefly in troduced.Then,the influence of CP and d iffe rent channe l e stim a tion on the system
pe rfo rm ance is emp ha tica lly analyzed respectively in Gauss and R ayle igh fading channe ls in the cond ition of ideal
synchronization.B e sides,based on the given system mode l O FDM system is compu te r sim u la ted w ith MA TLAB
language and the refe rentia l design p rocedure is given.Fina lly,the B ER cu rves of CP and channe l e stim ation a re
given and comp ared.The conclusion is sa tisfac to ry.
)
- 2009-06-01 16:10:00下载
- 积分：1
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ploting
可以实现动态绘制矩形、圆形、椭圆形等图样。matlab例程(Can dynamically draw the rectangle, round, oval and other patterns. matlab routines)
- 2010-05-13 08:53:04下载
- 积分：1
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fano
fano编码，一种常见的信源编码方法。实现了fano编码的基本思想。(fano coding, a common method of source coding. Fano coding realize the basic idea.)
- 2008-06-30 17:50:17下载
- 积分：1
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magic
魔术公式，汽车模型，四轮的，但没有数据，有公式(Magic formula，Car model)
- 2012-05-15 15:24:40下载
- 积分：1
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pulse_simulation_of_LFM_radar
本软件是线性调频（LFM）脉冲压缩雷达仿真系统的一部分，具有典型性和实用性，希望对搞雷达仿真的朋友们有所帮助。(the software of linear frequency modulation (LFM) radar pulse compression part of the simulation system, classic and practicality, and I hope to engage the radar simulation friends help.)
- 2007-03-26 15:49:59下载
- 积分：1
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QPSK
QPSK信号的调制解调过程，内容包括带通滤波，脉冲成形，以及硬判决译码过程(QPSK modulation and demodulation process of the signal, including a band-pass filtering, pulse shaping, and a hard-decision decoding process)
- 2014-10-16 09:56:41下载
- 积分：1
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Matlab
Regularization of a system dynamics matrix
- 2013-04-04 06:33:09下载
- 积分：1
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2DplateElementMethod
二维平面板受荷变形计算matlab程序，可选择三角形或四边形单元。(2D plate element analysis procedure by matlab)
- 2015-03-05 09:58:00下载
- 积分：1
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ntelligent-elevator-system
智能电梯系统仿真用matlab程序实现，智能控制(ntelligent elevator system simulation)
- 2013-03-10 00:41:38下载
- 积分：1
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channel_dec
维特比硬判决的译码程序，可以经过简单修改适应任何的约束长度(Hard-decision Viterbi decoding process can be simply adapted to any constraint length)
- 2008-03-16 13:12:32下载
- 积分：1
