GEOSCAN Search Results: Fastlink


TitleExploring the Elevation Beam Overlap Region in RADARSAT-1 ScanSAR
DownloadDownloads (Preprint)
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorHawkins, R K; Wolfe, J; Murnaghan, K; Jefferies, W C
SourceProceedings of the CEOS Calibration Workshop, Tokyo, April; 2001., Open Access logo Open Access
Alt SeriesEarth Sciences Sector, Contribution Series 20042988
Mediapaper; on-line; digital
File formatpdf
Released2001 01 01
AbstractScanSAR has become a well-established method of providing high quality wide-swath coverage using SAR from space. The method involves using multiple antenna elevation syntheses from a single antenna to switch between illuminating successive portions of the augmented swath. In switching between beams, the azimuth history of the beam is usually distributed in bursts for the respective elevation beams so that a partial azimuth history is provided. Issues in radiometry, relating to both elevation and azimuth processing are important in ScanSAR. This paper explores the beam seam issue. Using examples from RADARSAT-1, this radiometrically sensitive region is examined for the requirements on accuracy and consistency of the beam patterns. RADARSAT-1 has four ScanSAR modes and can involve 2, 3 or 4 beam ScanSAR operations. Implications on processing and designing ScanSAR systems are given.

Date modified: