A new scalloping filter algorithm for ScanSAR images

Roland Romeiser, Jochen Horstmann, Hans Graber

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations

Abstract

Due to its specific way of scanning over multiple sub-swaths of a radar image, a ScanSAR (scanning synthetic aperture radar) cannot sample Doppler histories continuously like a regular SAR in stripmap mode. This can cause an artifact known as azimuthal scalloping, a wave-like modulation of the image intensity in azimuth direction. Although the problem is theoretically understood, many ScanSAR images of ocean scenes continue to exhibit scalloping. This hampers their use for applications such as wave and wind retrievals. We have developed an efficient descalloping algorithm that can be applied to such images as a post-processing tool. We describe how it works and show examples.

Original languageEnglish (US)
Title of host publication2010 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010
Pages4079-4082
Number of pages4
DOIs
StatePublished - Dec 1 2010
Event2010 30th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010 - Honolulu, HI, United States
Duration: Jul 25 2010Jul 30 2010

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)

Other

Other2010 30th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010
CountryUnited States
CityHonolulu, HI
Period7/25/107/30/10

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Keywords

  • Filter
  • SAR processing
  • Scalloping
  • ScanSAR
  • Synthetic aperture radar (SAR)

ASJC Scopus subject areas

  • Computer Science Applications
  • Earth and Planetary Sciences(all)

Cite this

Romeiser, R., Horstmann, J., & Graber, H. (2010). A new scalloping filter algorithm for ScanSAR images. In 2010 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010 (pp. 4079-4082). [5652039] (International Geoscience and Remote Sensing Symposium (IGARSS)). https://doi.org/10.1109/IGARSS.2010.5652039