TY - GEN
T1 - Airborne Polarimetric Doppler Phased Array Weather Radar
T2 - 2020 IEEE Radar Conference, RadarConf 2020
AU - Vivekanandan, Jothiram
AU - Perez-Clifford, Luis
AU - Loew, Eric
AU - Karboski, Adam
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/9/21
Y1 - 2020/9/21
N2 - Performancerequirements for an airborne weather radar are more stringent than ground-based radar. Since the airborne radar has only a limited time for collecting measurements over a specified region, phased array radar with active electronic scanning array (AESA) enables rapid scanning of the antenna beam for collecting high-temporal and spatial resolution, research quality Doppler and polarimetric radar measurements. In the case of an AESA, when a beam is steered electronically away from the broadside, the gain and beamwidth change as a function of scan angle and cross-coupling between dual-polarization sources occur. For a specified aperture size and solid-state amplifier, pulse compression is used to enhance the received signal's sensitivity. To achieve reasonable along-track spatial resolution, the use of beam multiplexing (BMX) is essential. Beam multiplexing reduces errors in radar measurements while providing rapid updates of scan volumes. A beamforming architecture that supports BMX, and highspeed serial interconnect for front-end signal processing is essential for PAR's optimal performance. This paper describes the engineering design specifications of an antenna, transmit waveform, and weather radar signal processing subsystems.
AB - Performancerequirements for an airborne weather radar are more stringent than ground-based radar. Since the airborne radar has only a limited time for collecting measurements over a specified region, phased array radar with active electronic scanning array (AESA) enables rapid scanning of the antenna beam for collecting high-temporal and spatial resolution, research quality Doppler and polarimetric radar measurements. In the case of an AESA, when a beam is steered electronically away from the broadside, the gain and beamwidth change as a function of scan angle and cross-coupling between dual-polarization sources occur. For a specified aperture size and solid-state amplifier, pulse compression is used to enhance the received signal's sensitivity. To achieve reasonable along-track spatial resolution, the use of beam multiplexing (BMX) is essential. Beam multiplexing reduces errors in radar measurements while providing rapid updates of scan volumes. A beamforming architecture that supports BMX, and highspeed serial interconnect for front-end signal processing is essential for PAR's optimal performance. This paper describes the engineering design specifications of an antenna, transmit waveform, and weather radar signal processing subsystems.
KW - architecture
KW - beamforming
KW - distortion
KW - phased array
KW - pulse compression
KW - radar
KW - radiation pattern
KW - weather
UR - https://www.scopus.com/pages/publications/85098568917
U2 - 10.1109/RadarConf2043947.2020.9266530
DO - 10.1109/RadarConf2043947.2020.9266530
M3 - Conference contribution
AN - SCOPUS:85098568917
T3 - IEEE National Radar Conference - Proceedings
BT - 2020 IEEE Radar Conference, RadarConf 2020
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 21 September 2020 through 25 September 2020
ER -