Evaluating the effect of POA compensation on polinsar coherence for L-and-S band airborne SAR data

Shahid Shafai*, Shashi Kumar, Hossein Aghababaei, Anurag Kulshrestha

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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Abstract

The geometric anomalies of ground targets can change the polarization basis of the incident wave. The target orientation along the radar look direction has a significant impact on the interpretation of polarimetric data. Polarization Orientation Angle (POA) compensation is done to compensate the orientation effect for such targets. In this work, we try to evaluate the effect of POA compensation on polarimetric-interferometric (PolInSAR) coherence. We have used dual-frequency L-S-band airborne Synthetic Aperture Radar (SAR) data acquired over Rosamond, California, United States. The results show that POA compensation introduced a change in the coherence magnitude for all polarization channels. The statistical variation in the coherence is not prominent in HH and VV channels, however, significant change is observed in HV coherence. The paper also reflects on the possibility of using cross-frequency PolInSAR data for coherence estimation.
Original languageEnglish
Title of host publication2021 IEEE International India Geoscience and Remote Sensing Symposium (InGARSS)
Place of PublicationAhmedabad
PublisherIEEE
Pages356-359
Number of pages4
ISBN (Electronic)978-1-6654-4249-7
ISBN (Print)978-1-6654-4250-3
DOIs
Publication statusPublished - 13 Jun 2022
EventIEEE International India Geoscience and Remote Sensing Symposium, InGARSS 2021 - Ahmedabad, India
Duration: 6 Dec 202110 Dec 2021

Conference

ConferenceIEEE International India Geoscience and Remote Sensing Symposium, InGARSS 2021
Abbreviated titleInGARSS 2021
Country/TerritoryIndia
CityAhmedabad
Period6/12/2110/12/21

Keywords

  • 22/2 OA procedure

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