A new portable ELF Schumann resonance receiver: design and detailed analysis of the antenna and the analog front-end

EURASIP Journal on Wireless Communications and Networking

Table 4 Noise analysis of signal chain blocks

Block description	Equivalent rms input noise (nV)
Induction coil thermal noise	44.7
Preamplifier	21.02
Low-pass and notch filter	1588.3
Double notch filter	1415
Double low-pass filter	3977.5
High pass filter	1287
Voltage gain amplifier	555.75 to 1482.1 × 10³