Title :
Atmospheric compensation for uplink arrays via radiometry
Author :
Nessel, James A. ; Acosta, Roberto J.
Author_Institution :
NASA Glenn Res. Center, Cleveland, OH, USA
Abstract :
A proof-of-concept power combining enhancement scheme is proposed for an uplink array of widely spaced antenna elements through the utilization of a radiometer feedback system. The radiometer system provides near real-time compensation for improving the effective isotropic radiated power (EIRP) of an array, which could provide the optimal solution to array beamforming at Ka-band frequencies via atmospheric compensation. This technique is demonstrated with a sub-optimal 27.5 GHz radiometer and could further be improved with the use of a more sensitive water vapor radiometer.
Keywords :
array signal processing; radiometers; radiometry; array beamforming; atmospheric compensation; effective isotropic radiated power; frequency 27.5 GHz; radiometer feedback system; spaced antenna element; uplink array; Antenna arrays; Atmosphere; Correlation; Fluctuations; Phase measurement; Radiometers;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-4967-5
DOI :
10.1109/APS.2010.5561705
