DEM estimation algorithm based on offset correction for GNSS-based InBSAR

Zhixiang Xu, Zhanze Wang, Feifeng Liu*, Yingjie Miao, Jian Gao, Hongjie Liu

*Corresponding author for this work

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

Abstract

DEM with low accuracy will bring offsets to the target position in the imaging results. For GNSS-based InBSAR, the system has the characteristics of low bandwidth and poor resolution, and the offset phenomenon will be aggravated. Therefore, DEM estimation algorithm based on offset correction is proposed. The algorithm introduces the least squares to obtain the local DEM. Then, the offset estimation variance and the resolution cell size are used to determine the imaging range. Finally, the optimal global DEM is obtained based on the offset.

Original languageEnglish
Title of host publicationIEEE International Conference on Signal, Information and Data Processing, ICSIDP 2024
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798331515669
DOIs
Publication statusPublished - 2024
Event2nd IEEE International Conference on Signal, Information and Data Processing, ICSIDP 2024 - Zhuhai, China
Duration: 22 Nov 202424 Nov 2024

Publication series

NameIEEE International Conference on Signal, Information and Data Processing, ICSIDP 2024

Conference

Conference2nd IEEE International Conference on Signal, Information and Data Processing, ICSIDP 2024
Country/TerritoryChina
CityZhuhai
Period22/11/2424/11/24

Keywords

  • DEM fitting
  • GNSS-based InBSAR
  • Multi-angle imaging
  • resolution cell

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