Investigation into the Weight Update Rate for Scan-On-Receive Beamforming

Scan-On-Receive (SCORE) is a promising digital beamforming technique to improve the performance of SAR systems and enable high-resolution wide-swath concepts with multiple elevation beams. The technique is based on a beam-steering law which follows the angle-of-arrival of a pulse's echo travers...

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Bibliographic Details
Main Authors: de Almeida, Felipe Queiroz, Younis, Marwan, Krieger, Gerhard, Hensley, Scott, Moreira, Alberto
Format: Conference Proceeding
Language:English
Subjects:
Antennas
Array signal processing
Chirp
Delays
Digital Beamforming
HRWS
Lighting
SAR
SCORE
Switches
Synthetic aperture radar
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Summary:Scan-On-Receive (SCORE) is a promising digital beamforming technique to improve the performance of SAR systems and enable high-resolution wide-swath concepts with multiple elevation beams. The technique is based on a beam-steering law which follows the angle-of-arrival of a pulse's echo traversing the ground. In practice, SCORE, also known as SweepSAR, is implemented on-board using digital processing, which implies discretized beam forming coefficients. This paper analyzes the implications of a beam switch to examine criteria for setting the necessary beam granularity and proposes a simple yet effective method to achieve pattern phase continuity.
ISSN:2375-5318
DOI:10.1109/RadarConf2043947.2020.9266316