样本熵是时间序列复杂度的一种度量，在上个世纪末期由几位非线性动力学研究者提出。样本熵比近似熵更具有相对一致性，在分析生物信号序列的复杂度分析中已经获得成功应用。-Sample entropy is a measure of time sequence complexity, nonlinear dynamics in the late last century by a few researchers have proposed.Sample entropy than approximate entropy have relatively more consistency, based on the analysis of the complexity of the biological signal sequence analysis has been successful in application