Performance Analysis of Digital Filters Employed to Plants Electrical Signals
Keywords: Electrical Signals, Plant Electrophysiology, Response to Stimuli, Signal Processing
AbstractElectrical signals are generated and transmitted through the plant in response to disturbances like leaf burning, touching, and luminosity. Moreover, the whole structure of the plant is informed almost instantly by these signals. Taking into consideration variation potentials (VPs), system potentials (SPs), and action potentials (APs), even if a small region of the plant has suffered a stimulus, the excitation is spread from the top of the stem to the roots, in either direction. By investigating the electrical signals of a specific plant, it is conceivable to elucidate the impact of external aspects (i.e., soil moisture, mechanical stress, thermal shock) in the plasma membrane potential, and identify the electrical response origin. Therefore, this project addresses a brief plant electrophysiology theory and a detailed performance analysis of digital filters to this application. The filters were tested by using ECG signals due to some characteristics similar to plants electrical signals. The most efficient one was chosen by considering two signal parameters. The filter project selected to be applied in this work can be used to various plants' electrical responses, making a few adjustments through MATLAB software.