  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.
