Skip to main navigation Skip to search Skip to main content

Anomalous atmospheric phase screen compensation in ground-based SAR over mountainous area

  • Yuta Izumi
  • , Lilong Zou
  • , Kazutaka Kikuta
  • , Motoyuki Sato
  • Tohoku University
  • National Institute of Advanced Industrial Science and Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

In this study, an anomalous atmospheric phase screen (APS) compensation in the frame of a ground-based differential synthetic aperture radar interferometry (GB-DInSAR) is investigated. The two improved methods are proposed and verified with GB-SAR data acquired at the mountain cliff exposed by a landslide. The first method adopts the piecewise multiple regression approach by assuming the inhomogeneity of the refractivity index distribution along the range direction. As for the second method, we apply nth order of two-dimensional (2D) polynomial with respect to slant range and topography height which enables the flexible fitting for the anomalous APS. In the second method, the cross-validation is employed to avoid both underfitting and overfitting problem. The applicability of both methods is validated with GB-DInSAR data which presents the anomalous APS. As a result, both methods yield significant reduction of the residual error compared to the conventional method.
Original languageEnglish
Title of host publicationIGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2030-2033
ISBN (Electronic)978-1-5386-9154-0
ISBN (Print)978-1-5386-9155-7
DOIs
Publication statusPublished - 14 Nov 2019
Externally publishedYes
EventIGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium - Yokohama, Japan
Duration: 28 Jul 2019 → 2 Aug 2019

Publication series

NameIEEE International Symposium on Geoscience and Remote Sensing (IGARSS)
ISSN (Print)2153-6996
ISSN (Electronic)2153-7003

Conference

ConferenceIGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium
Period28/07/19 → 2/08/19

Keywords

  • Electrical and electronic engineering

Fingerprint

Dive into the research topics of 'Anomalous atmospheric phase screen compensation in ground-based SAR over mountainous area'. Together they form a unique fingerprint.

Cite this