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Elevation angle‐of‐arrival determination for a standard and a modified superDARN HF radar layout
Author(s) -
McDonald Andrew J.,
Whittington James,
Larquier Sebastien,
Custovic Edhem,
Kane Thomas A.,
Devlin John C.
Publication year - 2013
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1002/2013rs005157
Subject(s) - radar , aliasing , ray tracing (physics) , interferometry , elevation (ballistics) , geodesy , elevation angle , angle of arrival , remote sensing , direction of arrival , geology , computer science , antenna (radio) , azimuth , physics , optics , telecommunications , undersampling , astronomy
Calculations have been developed for the determination of elevation angle of arrival for a modified Super Dual Auroral Radar Network (SuperDARN) HF radar antenna layout consisting of dual auxiliary interferometer arrays: one behind and one in front of the main array. These calculations show that such a layout removes the 2 π ambiguity or angle‐of‐arrival aliasing effect observed in existing SuperDARN HF radars. Ray tracing and simulation results are presented which show that there is significant potential for aliasing with existing SuperDARN radars and the standard interferometer algorithm under routine operating conditions.