For access to this article, please select a purchase option:
Buy conference paper PDF
Buy Knowledge Pack
IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.
The multiple non-linear interaction theory model of high-frequency (HF) electromagnetic wave and Schumann Resonance (SR) is constructed on the basis of ionosphere cross modulation. The global SR distribution, particularly the phase variation effect on the modulation depth of HF waves and SR, is investigated. Results show that modulation depth is not proportional to the interaction distance under the condition of multiple interactions. A new SR observation method is proposed, and the observatory system is designed on the basis of theoretical research. China short-wave time service signal called BPM is received and demodulated. The first four spectral peaks of SR are obtained at 7.8, 14, 20 and 26Hz. The multiple non-linear interaction theory model of HF electromagnetic wave and SR is proven by the experiment. Signal analysis comparison is conducted and recommendations for future work are proposed.