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Some preliminary results obtained with the new Adelaide MF Doppler radar
Author(s) -
Vandepeer Brenton G. W.,
Reid Iain M.
Publication year - 1995
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 - 10.1029/95rs00732
Subject(s) - transmitter , backscatter (email) , phased array , antenna (radio) , doppler effect , radar , optics , interferometry , remote sensing , phase (matter) , physics , beam (structure) , sensitivity (control systems) , geology , antenna array , power (physics) , acoustics , telecommunications , computer science , electronic engineering , engineering , channel (broadcasting) , quantum mechanics , astronomy , wireless
A portion of the large Adelaide MF/HF antenna array has been used in conjunction with a new, 25 kW solid‐state transmitter to conduct electronic beam‐steering experiments. Thirty of the array's refurbished, independently phased antennas were connected to the 10 power amplification (PA) modules in groups of three to form a steerable beam with a one‐way half‐power half width of 5°. Phase propagation errors in the receivers were determined and used to enable accurate direction‐finding and interferometric studies to be conducted. In this paper, new methods of determining the aspect sensitivity of backscatter and the three‐dimensional linear wind field in the mesosphere and lower thermosphere (60–100 km) are introduced.