Title
A new portable ELF Schumann resonance receiver: design and detailed analysis of the antenna and the analog front-end
Abstract
Schumann resonance oscillation detection is a complex procedure which requires customized and high-quality measurement systems. The primary objective of this work was to design and implement a stand-alone, portable, and low-cost receiver able to measure as much Schumann resonance harmonics as possible. Design, as well as detailed analysis of the efficient induction coil magnetic antenna and the low-noise amplifying-filtering chain, is presented. The detection system includes two coils back to back, resulting in a total coil length of 60 cm. The filtering and amplification chain exhibits an experimentally measured total passband gain equal to 112 dB at 10 Hz and as low as 2.88 nV/√Hz equivalent input noise. In order to validate the new portable ELF Schumann resonance detection and monitoring system, we took measurements at various spots “relatively” free from man-made electromagnetic pollution. Results have shown very clear Schumann resonance peaks for the first six modes with 10-min acquisition time.
Year
DOI
Venue
2018
10.1186/s13638-018-1157-7
EURASIP Journal on Wireless Communications and Networking
Keywords
Field
DocType
Receiving antenna,Analog front-end,Amplifier,Filter,System testing,Schumann resonance measurements
Passband,Analog front-end,Computer science,Induction coil,Schumann resonances,Real-time computing,Electromagnetic coil,Harmonics,Acoustics,Equivalent input,Amplifier
Journal
Volume
Issue
ISSN
2018
1
1687-1499
Citations 
PageRank 
References 
1
0.48
4
Authors
7