MIMO-OFDM系统中一种改进的递归最小二乘(RLS)信道估计方法可以在不需要任何信道统计信息的前提下，利用前导训练序列和自适应遗忘因子对信道状态参数进行估计。-The modified recursion lest squares (RLS) channel estimation method exploits preamble training

sequences and adaptive forgetting factor to estimate channel state parameters without any prior statistics knowledge

of channel in multiple input multiple outputorthogonal frequency division multiplexing (MIMO-OFDM) systems.