In time domain, the noise is mitigated through three schemes: time-sliding average, time-forgetting average, and their combination as the channel is slowly time-varying.

• 时域利用慢衰落信道环境下信道系数变换缓慢的特点，提出了时间滑动平均、时间遗忘、时间平均与时间遗忘结合等几种降噪方法；