摘要
多输入多输出(MIMO)技术是最近几年发展起来的无线通信技术。目前利用MIMO技术提高短波通信的传输速率和可靠性的研究已经开展。论文着重研究了MIMO OFDM短波无线通信的频率同步技术,利用频域正交的训练序列完成了系统各个发射/接收天线对之间频偏不同时的载波频偏估计。
Multiple-Input Multiple-Output （MIMO） is a new technique for wireless communication. Now the research on HF communication systems using MIMO technique to improve the data rate and reliability has been developed. This paper investigates the frequency synchronization for MIMO OFDM HF wireless communication systems, and proposes a frequency synchronization acquisition method by training symbols which are orthogonal in frequency domain in case that multiple frequency offsets exist between the pairs of transmit and receive antennas
出处
《信息安全与通信保密》
2007年第3期73-76,共4页
Information Security and Communications Privacy
