In addition, considering the origin, the mechanism and the framework of the pulse signals, peak value, peak frequency, center of gravity (cg), gravity frequency of power spectrum, AR model parameter, the value of SER and Renyi entropy were extracted.

• 并且根据脉搏信号的产生机理、性质,提取了功率谱峰值、功率谱重心及其频率,AR模型系数,SER值,Renyi信息量等多个特征量。