Locating Earth disturbances using the SDR Earth Imager
Date
2022
Authors
Sharif, Radwan
Tanyer, Suleyman Gokhun
Harrison, Stephen
Junor, William
Driessen, Peter
Herring, Rodney
Journal Title
Journal ISSN
Volume Title
Publisher
Remote Sensing
Abstract
The Radio Wave Phase Imager uses monitoring and recording concepts, such as Software
Defined Radio (SDR), to image Earth’s atmosphere. The Long Wavelength Array (LWA), New Mexico
Observatory is considered a high-resolution camera that obtains phase information about Earth
and space disturbances; therefore, it was employed to capture radio signals reflected from Earth’s
F ionization layer. Phase information reveals and measures the properties of waves that exist in
the ionization layer. These waves represent terrestrial and solar Earth disturbances, such as power
losses from power generating and distribution stations. Two LWA locations were used to capture the
ionization layer waves, including University of New Mexico’s Long Wavelength Array’s LWA-1 and
LWA-SV. Two locations of the measurements showed wavevector directions of disturbances, whereas
the intersection of wavevectors determined the source of the disturbance. The research described
here focused on measuring the ionization layer wave’s phase shifts, frequencies, and wavevectors.
This novel approach is a significant contribution to determine the source of any disturbance.
Description
Keywords
Software Defined Radio (SDR), Long Wavelength Array (LWA), radio wave imager, ionosphere waves, phase imaging method, Earth disturbances, wave vectors
Citation
Sharif, R., Tanyer, S. G., Harrison, S., Junor, W., Driessen, P., & Herring, R. (2022). “Locating Earth disturbances using the SDR Earth Imager.” Remote Sensing, 14(24), 6393. https://doi.org/10.3390/rs14246393