Anomalous Atmospheric Phase Screen Compensation in Ground-Based SAR over Mountainous Area

Yuta Izumi, Lilong Zou, Kazutaka Kikuta, Motoyuki Sato

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

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.

本文言語English
ホスト出版物のタイトル2019 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 - Proceedings
出版社Institute of Electrical and Electronics Engineers Inc.
ページ2030-2033
ページ数4
ISBN(電子版)9781538691540
DOI
出版ステータスPublished - 2019 7
イベント39th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 - Yokohama, Japan
継続期間: 2019 7 282019 8 2

出版物シリーズ

名前International Geoscience and Remote Sensing Symposium (IGARSS)

Conference

Conference39th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019
CountryJapan
CityYokohama
Period19/7/2819/8/2

ASJC Scopus subject areas

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

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