A MULTIPATH DELAY ESTIMATION MODEL AND ALGORITHM IN OFDM SYSTEMS

被引：0
|
作者：
Chen, Ya-jun [1 ]
Peng, Jian-hua [1 ]
Huang, Kai-zhi [1 ]
Gong, Xiao-rui [1 ]
机构：
[1] Natl Digital Switching Syst Engn & Technol Res Ct, Zhengzhou 450000, Peoples R China
来源：
2014 4TH IEEE INTERNATIONAL CONFERENCE ON INFORMATION SCIENCE AND TECHNOLOGY (ICIST) | 2014年
关键词：
the OFDM system; grouped joint time delay estimation (GJ-TDE); sampling interval; root mean square error (RMSE); TIME;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In wireless location area, the estimation precision of the TOA (the time of arrival) is low because it underutilizes the time-frequency characteristics of the OFDM signal in the OFDM system. To solve this problem, in this paper, a multipath delay estimation model based on frequency domain phase offset (FDP-MDE) is proposed. And then, a grouped joint time delay estimation algorithm (GJ-TDE) is proposed according to features of the LTE system. Simulation results show that the root mean square error (RMSE) of the GJ-TDE algorithm is 5.5034m smaller than that of the synchronization algorithm under the condition that the signal-to-noise ratio (SNR) is 0dB and the sampling interval is 8.
引用
收藏
页码：144 / 147
页数：4
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