Heart period signal (HPS) analysis is used as a non-invasive heart autonomic nervous system (ANS) function examination, which has been acknowledged and used extensively in clinic.

• 在临床上运用心动周期信号(Heart period signal，HPS)分析作为反映心脏自主神经系统活性（Autonomic nervous system，ANS）的一种无创性检测方法已得到广泛公认和应用。