• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Key Engineering Materials >Channel Estimation based on Interpolation in OFDM System
【24h】

Channel Estimation based on Interpolation in OFDM System

机译：OFDM系统中基于插值的信道估计

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

OFDM (Orthogonal Frequency Division Multiplexing) is a new modulation technology, which can reduce multi-pass interference efficiently. It splits a high-rate data stream into a number of lower-rate data streams which can be transmitted simultaneously over a number of subcarriers. It brings high spectral efficiency. In this paper, we first introduce the channel estimation algorithm based on comb-pilot in OFDM system, and emphasis on analysis and comparison of the three kinds of interpolation methods: linear interpolation, low-pass interpolation and transform-domain interpolation. We use MATLAB to carry out the system simulation, and its results indicate that: The performance of low-pass interpolation is the best, but it's hard to carry out; transform-domain interpolation's performance and complexity are both between above two methods.
机译：OFDM（正交频分复用）是一种新的调制技术，可以有效降低多通干扰。它将高速率数据流拆分为多个低速率数据流，这些数据流可以同时在多个子载波上传输。它带来了高光谱效率。本文首先介绍了OFDM系统中基于梳状导频的信道估计算法，重点分析和比较了三种插值方法：线性插值，低通插值和变换域插值。我们用MATLAB进行系统仿真，结果表明：低通插值的性能最好，但是很难实现；变换域插值的性能和复杂性都在以上两种方法之间。

著录项

  • 来源
    《Key Engineering Materials》 |2010年第1期|P.794-798|共5页
  • 作者

    CUI Yue Hua; YE Shuang; WU Qiu Rui; LIU Jian Hua; DAI Yan;

  • 作者单位

    College of electrical and electronic engineering, Shijiazhuang railway institute, Shijiazhuang, China;

    rnDepartment of information engineering, Tangshan college, Tangshan, China;

    rnCollege of electrical and electronic engineering, Shijiazhuang railway institute, Shijiazhuang, China;

    rnCollege of electrical and electronic engineering, Shijiazhuang railway institute, Shijiazhuang, China;

    rnZhengding Number One Middle School, Zhengding, China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    OFDM; channel estimationn; pilot signals; interpolation;

    机译：OFDM;信道估计导频信号;插补;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号