For the problem of PPS parameter estimation, the DPT method is lucubrated. This method may estimate the highest order of PPS.

• 4)针对多项式相位信号的参数估计问题,以最大似然估计为基础详细介绍了基于DPT的PPS信号参数估计的方法,本方法可以估计PPS信号的阶数;