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| 突发OFDM系统中的同步算法研究 | |
| 引用本文： | 马鹏飞,侯娟,张巍.突发OFDM系统中的同步算法研究[J].无线电通信技术,2010,36(1):1-3. |
| 作者姓名： | 马鹏飞 侯娟 张巍 |
| 作者单位： | 1. 中国电子科技集团第五十四研究所,河北,石家庄,050081 2. 石家庄职业技术学院,河北,石家庄,050081 3. 总参陆航部驻哈尔滨地区军代室,黑龙江,哈尔滨,150066 |
| 摘 要： | 提出了一种应用于突发OFDM通信系统的同步算法。在粗同步阶段,采用两路延迟相关结构,通过适当选择两路的延迟量和累加量,可以有效实现估计精度与方差的折中,提高小数频偏的估计精度,在细同步阶段,在FFT之后进行整数频偏和残留时偏的联合估计,利用子载波上的线性相位得到更加精确的时偏估计。仿真显示,该算法具有较高的同步精度和较快的同步速度,能够适应于突发OFDM传输系统。 |
| 关 键 词： | 突发OFDM 同步 频偏估计 |
Research on Synchronization Algorithm for Burst OFDM System |
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| MA Peng-fei,HOU Juan,ZHANG Wei.Research on Synchronization Algorithm for Burst OFDM System[J].Radio Communications Technology,2010,36(1):1-3. | |
| Authors: | MA Peng-fei HOU Juan ZHANG Wei |
| Affiliation: | MA Peng-fei1,HOU Juan2,ZHANG Wei1(1.The 54th Research institute of CETC,Shijiazhuang Hebei 050081,China,2.Shijiazhuang Vocational Technology Institute,3.Military Representative Office of Army Aviation Division in Harbin Area,Harbin Heilongjiang 150066,China) |
| Abstract: | This paper proposes a synchronization scheme for bust OFDM systems.At coarse synchronization,a delay correlation structure with two embranchments is introduced,which improve the precision of fractional frequency estimation by tradeoff the accumulated length and delay.At fine synchronization,after FFT,the joint estimation algorithm of integer frequency offset and remained time offset is proposed.The method is to use the linear phase on subcarriers to obtain time estimation.The simulation results confirm the ... |
| Keywords: | burst OFDM synchronization frequency offset estimation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |