Algorithms,such as automatic frequency control(AFC),automatic gain control(AGC),phase-amplitude tracking(PAT),and phase ambiguity detecting (PAD),were jointly used in this scheme.

• 综合应用自动频率控制(AFC)、自动增益控制(AGC)、相位/幅度跟踪、相位模糊检测等算法,在没有任何训练序列的情况下,能准确地恢复调制信号载波相位。