Paper Info
Title
Analytical Models for Multipath and Switch Leakage for the SWOT Interferometer
Abstract
The Ka-Band Radar Interferometer (KaRIn) instrument on the Surface Water and Ocean Topography (SWOT) mission is a single-pass synthetic aperture radar (SAR) interferometer tasked with, among others, measuring ocean topography to within a few centimeters over kilometer scale resolutions. A SAR interferometer relies on very precise phase difference measurements between two spatially distant antennas to estimate topography. Multipath phase caused by unintended scattering off the spacecraft structure is a known error source for radar interferometers and takes up a significant portion of the KaRIn error budget. This paper outlines some analytical multipath models that were used for instrument design, performance analysis and mitigation of the multipath signal.
Year
DOI
Venue
2022
10.3390/s22051931
SENSORS
Keywords
DocType
Volume
radar, SAR interferometry, multipath phase, ocean topography
Journal
22
Issue
ISSN
Citations 
5
1424-8220
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Razi Ahmed100.34
Daniel Esteban-Fernández200.34
Scott Hensley334.85