TY - GEN
T1 - Airborne Polarimetric Doppler Phased Array Weather Radar
T2 - 2022 IEEE International Symposium on Phased Array Systems and Technology, PAST 2022
AU - Karboski, Adam
AU - Vivekanandan, Jothiram
AU - Burghart, Christopher
AU - Eret, Turing
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - A weather radar using an active electronically scanned array (AESA) enables rapid scanning of the antenna beam for Doppler and polarimetric radar observation measurements. An AESA consists of radiating elements, power amplifiers, attenuators, phase shifters, array controllers, and digital converters. This paper describes a digital twin, the AESA Simulator, which models both the AESA and weather radar returns, developed to explore and validate the optimal configuration of the APAR subsystems. Using a hybrid digital beamforming architecture, multiple, simultaneous receive beams are realized upon reception. Traditional analog beamforming will be performed along each row, while digital beamforming will be performed across the per-row outputs of the AESA. The simulator sums over a spatial grid, rather than using a prescribed antenna pattern, in order to support testing of multiple receive beams, clutter mitigation algorithms, and other developments that require accurate modeling of spatial diversity. The digital twin allowed NCAR/EOL to accelerate the timeline for engineering development of the APAR radar back end (RBE) and provides the necessary configurability to conform to the eventual AESA digital data acquisition and control interfaces as AESA and RBE development converge. Together the simulator and RBE are used to evaluate/validate the radar at the system level.
AB - A weather radar using an active electronically scanned array (AESA) enables rapid scanning of the antenna beam for Doppler and polarimetric radar observation measurements. An AESA consists of radiating elements, power amplifiers, attenuators, phase shifters, array controllers, and digital converters. This paper describes a digital twin, the AESA Simulator, which models both the AESA and weather radar returns, developed to explore and validate the optimal configuration of the APAR subsystems. Using a hybrid digital beamforming architecture, multiple, simultaneous receive beams are realized upon reception. Traditional analog beamforming will be performed along each row, while digital beamforming will be performed across the per-row outputs of the AESA. The simulator sums over a spatial grid, rather than using a prescribed antenna pattern, in order to support testing of multiple receive beams, clutter mitigation algorithms, and other developments that require accurate modeling of spatial diversity. The digital twin allowed NCAR/EOL to accelerate the timeline for engineering development of the APAR radar back end (RBE) and provides the necessary configurability to conform to the eventual AESA digital data acquisition and control interfaces as AESA and RBE development converge. Together the simulator and RBE are used to evaluate/validate the radar at the system level.
KW - digital twin
KW - electronic scanning
KW - phased array
KW - radar
KW - simulation
KW - weather
UR - https://www.scopus.com/pages/publications/85145661663
U2 - 10.1109/PAST49659.2022.9975084
DO - 10.1109/PAST49659.2022.9975084
M3 - Conference contribution
AN - SCOPUS:85145661663
T3 - IEEE International Symposium on Phased Array Systems and Technology
BT - 2022 IEEE International Symposium on Phased Array Systems and Technology, PAST 2022
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 11 October 2022 through 14 October 2022
ER -