摘要
根据OFDM信号的特点,在深入分析使用训练序列和导频符号进行波束形成这2类算法的基础上,提出一种适用于无线局域网分组传输情况下的波束形成方法,此方法结合了上述2类算法的优点,同时使用训练序列和导频符号在时域进行波束形成。在瑞利衰落信道下的计算机仿真结果表明,该算法有较好的性能。
This paper proposes an adaptive beamforming algorithm for antenna arrays applied to an OFDM systems, based on the analyses of two typical kind of beamforming algorithms which use preamble and pilot respectively as known transmitted data to design a filter. This algorithm is suit for the WEAN standard, which combines the virtues of this two kind of algorithms and uses both preamble and pilot as training sequences. Performance improvement of the proposed approach is investigated through computer simulation in the Rayleigh fading channel.
出处
《无线电通信技术》
2006年第2期62-64,共3页
Radio Communications Technology
