A subspace-based blind channel estimator has been developed for space time coding orthogonal frequency division multiplexing (STC-OFDM) system with two transmit antennas and two receive antennas.

• 摘要针对使用2个发射天线和2个接收天线并且采用循环前缀的空时编码正交频分复用系统(STC-OFDM)，提出了一种信道盲估计算法，并给出信道可被辨识的条件。