Classification of basic deformation products of L-band differential interfero-metric SAR satellite

doi:10.11947/j.AGCS.2023.20220050

Abstract

Abstract: China's first L-band differential interferometric SAR satellite, also named as Lutan-1 (LT-1), is an interferometric satellite constellation using the L frequency full-polarization payload. LT-1 consists of two identical satellites. It uses the differential interferometric technology to conduct the deformation monitoring task for the specified area. In this paper, we research the deformation monitoring requirements and the satellite observing capacity and provide the deformation product classification. The first is the deformation field (DF) product generated using the two calibrated single look complex (SLC) images covering the identical area. The second is the deformation velocity field (DVF) product generated using multiple calibrated SLC images covering the identical area. The third is the multi-temporal deformation (MTD) product produced using the multi-temporal InSAR (MTInSAR) method. Taking the Sentinel-1 data distributed over Yungang District of Datong City, Shanxi Province as an example, we show and analyze the contents of the DF, DVF, and MTD products, and preliminarily explains the characteristics and results of the products. The product system is hoped to provide reference to the operational product generation.

Key words: Lutan-1, DInSAR, stacking, MTInSAR, basic deformation product

CLC Number:

P236

LI Tao, TANG Xinming, LI Shijin, ZHOU Xiaoqing, ZHANG Xiang, XU Yaozong. Classification of basic deformation products of L-band differential interfero-metric SAR satellite[J]. Acta Geodaetica et Cartographica Sinica, 2023, 52(5): 769-779.

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