3 November 2010 The feasibility of a multibeam delay/Doppler radar altimeter
Author Affiliations +
Proceedings Volume 7841, Sixth International Symposium on Digital Earth: Data Processing and Applications; 78410G (2010) https://doi.org/10.1117/12.873210
Event: The Sixth International Symposium on Digital Earth, 2009, Beijing, China
Abstract
Radar altimeter can map the global geoid with high precision. This paper presents a new concept of mutibeam delay/Doppler radar altimeter which combines a liner array of nadir receivers and a nadir transmitter. The delay/Doppler technology is applied in the along track, and the array signal processing technology in the cross track. The key innovation in this concept is that fan-beams form in both along track and across track, and range correction is applied in across track as in along track, so that it could provide high precision with wide swath. But the 3D-matrix store and processing of the raw data from receivers are much more complicated than a conventional radar altimeter and a delay/Doppler radar altimeter. The scheme is of obvious advantages. It could provide height profile with high precision for left scene and right scene, respectively, and leave small footprints at as far range as at near range. It could also lead to uniform cross section in each resolution cell.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shuangbao Yang, Zhisen Wang, Heguang Liu, Ke Xu, "The feasibility of a multibeam delay/Doppler radar altimeter", Proc. SPIE 7841, Sixth International Symposium on Digital Earth: Data Processing and Applications, 78410G (3 November 2010); doi: 10.1117/12.873210; https://doi.org/10.1117/12.873210
PROCEEDINGS
9 PAGES


SHARE
RELATED CONTENT

Digital processing of meter waveband SAR data
Proceedings of SPIE (December 21 1994)
Adaptive filtering for air-to-ground surveillance
Proceedings of SPIE (September 02 2004)
Resampling methods for stretch processing in PCL radars
Proceedings of SPIE (December 28 2007)
Inverse synthetic aperture radar image processing
Proceedings of SPIE (June 01 1992)
Hybrid space-airborne bistatic SAR geometric resolutions
Proceedings of SPIE (September 29 2009)
The concept of a multibeam delay/Doppler radar altimeter
Proceedings of SPIE (October 03 2011)

Back to Top