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本文首先概述了OFDM 的原理、特征和关键技术,介绍了系统需要的几种同步。然后就同步误差对系统性能的影响进行了简单的分析,表明定时偏差和采样频率偏差将会引入码间...
本文首先概述了OFDM 的原理、特征和关键技术,介绍了系统需要的几种同步。然后就同步误差对系统性能的影响进行了简单的分析,表明定时偏差和采样频率偏差将会引入码间干扰,载波频率偏差导致载波间干扰的发生。因此,在OFDM系统接收机中定时的确定、载波频率偏差和采样频率偏差的纠正是信号恢复的关键。之后对OFDM系统同步的几种实现方法进行了介绍,分析了各同步方法的性能。-The paper first outlines the principles of OFDM, features and key technologies, the system needs to introduce several synchronization. Synchronization error and then the impact on system performance for a simple analysis, show that the timing deviation and the sampling frequency deviation will introduce inter-symbol interference, the carrier frequency deviation led to the occurrence of ICI. Therefore, in OFDM system receiver to determine the timing, carrier frequency offset and sampling frequency offset correction signal to restore the key. After the OFDM system to achieve synchronization of several methods of introduction, an analysis of the performance of the synchronization method.
- 2022-03-22 23:04:03下载
- 积分:1
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此文件为Word 格式文件.DOC转换为TXT文件的源代码。
此文件为Word 格式文件.DOC转换为TXT文件的源代码。-This file format for Word documents. DOC converted to TXT file s source code.
- 2023-02-06 11:30:04下载
- 积分:1
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array stack and the realization Chain stack code
数组堆栈与链表堆栈的实现代码-array stack and the realization Chain stack code
- 2023-06-27 20:10:03下载
- 积分:1
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VC++ 6.0 时间控件用法范例
一个使用时间控件的VC++范例源码,这个控件可让用户对所输入时间的精确手动微调,是一个方便用户和减少程序出错率的实用控件,如截图所示的效果。一些相关的设置:
//选择短日期显示格式
m_ctrlDateTime1.ModifyStyle(0, DTS_SHORTDATEFORMAT, 0);
//选择时间显示格式
m_ctrlDateTime2.ModifyStyle(0, DTS_TIMEFORMAT, 0);
//获得当前时间
CTime time = CTime::GetCurrentTime();
//设置时间
m_ctrlDateTime1.SetTime(&time);
m_ctrlDateTime2.SetTime(&time);
- 2022-02-20 22:22:06下载
- 积分:1
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矩阵导致小程序,对输入的矩阵求倒置后的矩阵
矩阵导致小程序,对输入的矩阵求倒置后的矩阵-Matrix led to a small program, the input of the matrix after the matrix inversion
- 2022-04-06 10:06:55下载
- 积分:1
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指示器的jQuery插件
说明: 插件中的方法非常容易定制和实现,并且使用的图片都是矢量图片(The method in the plug-in is very easy to customize and implement, and all the pictures used are vector pictures.)
- 2019-01-19 09:48:47下载
- 积分:1
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android
《14天学会安卓开发》,这是一本简单易懂的安卓开发教程,让你能够快速入门(This is a straightforward Android development tutorial, so you can QuickStart)
- 2015-07-26 21:18:10下载
- 积分:1
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Qurive
说明: 基于LabVIEW的石英音叉陀螺闭环驱动的实现(Quartz tuning fork gyroscope based on LabVIEW implementation of closed loop drive)
- 2011-03-02 18:04:08下载
- 积分:1
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jquery.mobile手机网页_
一款小说网页 一共5个页面 使用了一些html5新特性 可进行编辑(A total of 5 pages of a novel web page, which can be edited with some new features of HTML5.)
- 2018-06-11 23:20:06下载
- 积分:1
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ICA算法
说明: 盲源分离;混合信号分离;
噪声抑制与信号提取方法与实现;(Independent component analysis)
- 2019-05-05 20:42:53下载
- 积分:1