The phase-metric method of isolating the information component in the distributed processing of geoelectric signals in geoecological monitoring systems

Abstract

The article discusses the principles of isolation of the phase information component based on the results of processing analog signals in geoecological monitoring systems operating in agricultural development zones of the territories. The features of using geoelectr%%ic methods are shown, the disadvantages of traditional approaches for estimating the amplitudes of recorded signals are indicated. The use of a method based on monitoring the phase dynamics of the recorded geoelectric signals coming from pairs of receiving lines of grounding electrodes is proposed. A generalized block diagram of the receiving path of the phase monitoring system and options for its adaptation to the processing of recorded analog signals are presented. The structural blocks and functional models of this generalized scheme are determined, and a mathematical description of all stages of processing the input geoelectric signals of the receiving path of the phase monitoring system is given, justifying the effectiveness and feasibility of the proposed approach. To test it, experimental studies of the layout of the phasometric measuring system for monitoring geodynamic karst processes in the coastal zone of Lake Svyato, Nizhny Novgorod Region were performed, which showed its high sensitivity and potential for solving problems of detecting, localizing and predicting small geodynamic events.