System for detection of solar flares in very low frequency band

Abstract

This study presents the development of an electronic system for the registration of solar activity from the monitoring disturbances presented in the terrestrial signals emitted in the very low frequency band. The equipment was built based on a loop type antenna, filtering and amplification circuit for signal conditioning, and a graphical interface developed in Matlab© for processing and visualization of data collected. The system is currently installed at the Astronomical Observatory of the Technological University of Pereira, home of the Alpha Orion Astroengineering Research Group, completing far more than a hundred solar flares detected over 450 days of monitoring.