统计分析方法在植物电波信号研究中的应用

Application Statistical Analysis Method in the Study of the Plant Electrical Signal

植物电波信号是一种相当复杂的信号,应用传统的电生理方法,已不能获取更多有用信息.应用统计分析方法对植物电波信号进行了时域和频域上的分析.分析发现植物电波信号属于低频信号,其功率谱主要分布在小于5 Hz频段,是一种随机性比较强的微弱信号,幅值处于μV级,并随时间变化剧烈,不同时刻的取值关系松散.

The plant electrical signal is a kind of complicated signal, and the traditional electrophysiological method couldn＇t get more useful message from it. This article analyzes the plant electrical signal in time domain and frequency domain by using the statistical analysis method. The plant electrical signal is a kind of random and micro signal, and its amplitude value is in the μV magnitude. It varies acutely with the time, and in different time, its relativity is weak. It is a low-frequency signal, and its power spectrum mostly distributes in the less than 5Hz frequency range.