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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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shortest
This code simulates Shortest Path Routing protocol that resides in network layer of a Network Architecture
- 2011-02-01 21:39:24下载
- 积分：1
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matpower2.0
比较经典的matlab的电力系统潮流计算程序(more classic Matlab power flow calculation procedures)
- 2006-06-06 10:02:38下载
- 积分：1
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90-examples-of-matlab
matlab的90个实例源程序包括了各种绘图源程序、各种动画程序以及一些先进的算法等(matlab source code, including 90 instances of a variety of mapping source, a variety of animation programs as well as some advanced algorithms
)
- 2011-12-02 15:19:28下载
- 积分：1
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melfilter
meifilter倒谱系数滤波器,欢迎大家使用(it s melfilter, welcome to download)
- 2010-11-16 16:43:31下载
- 积分：1
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Nlayer_denoise
说明： 小波阈值去噪。对图像加噪，并进行小波1到4层分解去噪，给出信噪比走势图(Wavelet thresholding. Increase the image noise, and 1 to 4 layers of wavelet decomposition denoising, signal to noise ratio charts are given)
- 2011-04-05 20:52:25下载
- 积分：1
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_06_-Jeong-Hyun-Lee..
1/f Noise Characteristics of Sub-100 nm MOS
Transistors
- 2013-08-13 14:26:39下载
- 积分：1
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histogram_graylevel
contrasting using histogram equalization
- 2013-03-14 04:27:01下载
- 积分：1
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suoxianghuan
锁相环相关知识，包含二阶 三阶 锁相环的介绍以及编程实例汇总(Phase-locked-related knowledge, presentation and programming examples included 2nd and 3rd order PLL summary)
- 2014-11-06 21:14:06下载
- 积分：1
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doppler_sig
多普勒信号有很多种，我这里上传的是通过常规函数构造出一个理想的多普勒信号，多普勒信号是用其频移来进行计算的，一般是激光干涉仪等出来多普勒信号(Doppler signal there are many, I am here to upload a laser Doppler interferometer signal out through conventional function construct an ideal Doppler signal, the Doppler frequency shift signal is carried by its calculations)
- 2014-11-25 11:46:24下载
- 积分：1
