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Research on OFDM Channel Estimation in UAV Downlink System
Author(s):
QI Wei
,
CHANG Qing
,
ZHANG Qishan
,
XIU Chunzuo
Pages:
33
-
36
Year:
2009
Issue:
4
Journal:
Aeronautical Science and Technology
Abstract:
该文将正交频分复用技术(OFDM)传输系统应用于无人机下行数据链路中,基于无人机通信信道的组成、冲激响应模型,构建了无人机链路中的OFDM通信系统.针对无人机信道快时变和高动态等特点.提出一种改进的OFDM信道估计算法,给出了在无人机飞行状态下误码率性能的仿真结果.实验结果表明该OFDM信道估计算法可以满足未来无人机下行数据链路系统要求.
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