Improved Sentinel-1 IW Burst Stitching Through Geolocation Error Correction Considerations
- Resource Type
- Conference
- Authors
- Akiki, Roland; Anger, Jeremy; de Franchis, Carlo; Facciolo, Gabriele; Morel, Jean-Michel; Grandin, Raphael
- Source
- IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium Geoscience and Remote Sensing Symposium, IGARSS 2022 - 2022 IEEE International. :3404-3407 Jul, 2022
- Subject
- Aerospace
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Geoscience
Photonics and Electrooptics
Power, Energy and Industry Applications
Signal Processing and Analysis
Geology
Time series analysis
Geometric modeling
Geoscience and remote sensing
Calibration
Error correction
Australia
Sentinel-1
IW
Burst
Stitching
Mo-saicking
Debursting
Geolocation
Correction
Intra-Pulse
Atmospheric Path Delay
Bistatic
- Language
- ISSN
- 2153-7003
Since the commissioning phase of Sentinel-1A, several calibration studies have improved the geolocation and geometric modeling of the data. The implementation of the corrections presented in these studies is left to the user. The issues found might be confusing when working with bursts in the interferometric wide swath mode, because the geometric shifts present in the data are not usually the same at the burst boundaries. This might introduce small inconsistencies in a mosaic product if not properly handled, which is especially inconve-nient in high precision applications. This paper proposes a method to account for this effect by resampling the bursts before stitching. The method is validated with experiments on real Sentinel-1 data.