A prototype data acquisition and processing system for Schumann resonance measurements

In this paper, a cost-effective prototype data acquisition system specifically designed for Schumann resonance measurements and an adequate signal processing method are described in detail. The implemented system captures the magnetic component of the Schumann resonance signal, using a magnetic antenna, at much higher sampling rates than the Nyquist rate for efficient signal improvement. In order to obtain the characteristics of the individual resonances of the SR spectrum a new and efficient software was developed. The processing techniques used in this software are analyzed thoroughly in the following. Evaluation of system's performance and operation is realized using preliminary measurements taken in the region of Northwest Greece. •SR Measurements have been carried out in this prefecture for the first time.•We implement a suitable acquisition system for Schumann resonance measurements.•Data logger detects the relatively weak signal in the presence of strong noise.•The 50Hz peak is a very strong interference, but it is actually attenuated by the filters.•SNR improvement is about 22dB.