摘要
在无线通信中,受多径干扰的影响,传输信号有较大的失真。采用空间分集技术,通过使用多发送天线和多接收天线系统(MIMO系统),可以从一定程度上保证传输信号的质量。空时编码技术从编码的角度,为空间分集技术提供了发送信号的策略。
The wireless channel suffers from attenuation due to multipaths in the pr opagating media.With the introduc-tion of space diversity,by using mul ti -sending antennas and multi -receiving antennas system(MIMO),we can improve the quality of the signals.Space -time c odes provides a strategy to send sign als.
出处
《通信技术》
2003年第4期56-57,共2页
Communications Technology