基于序贯蒙特卡罗算法的多天线快时变信道的盲跟踪

Blind tracking based on Monte Carlo algorithm over MIMO fast time-varying channels

针对通信系统时变信道采用蒙特卡罗算法进行盲信道跟踪,并将该盲跟踪算法用于多天线信道及空时分组编码的情况,在相同的系统条件下与卡尔曼滤波跟踪算法进行了性能比较,并讨论了系统存在载波频偏情况下的跟踪性能。仿真结果表明,序贯蒙特卡罗算法可以对时变信道进行很好的跟踪。

The Monte Carlo algorithm was applied for time-varying channel tracking in communication system and in multi-antenna channels with space time block coding （STBC）. The algorithm was compared with Kalman filtering method under the same condition, the tracking performance was discussed when the system had carrier frequency offset. Simulation results show that the proposed method has good performance in tracking the time-varying channel.