L波段差分干涉SAR卫星基础形变产品分类

doi:10.11947/j.AGCS.2023.20220050

测绘学报 ›› 2023, Vol. 52 ›› Issue (5): 769-779.doi: 10.11947/j.AGCS.2023.20220050

L波段差分干涉SAR卫星基础形变产品分类

李涛¹, 唐新明¹, 李世金^1,2, 周晓青¹, 张祥¹, 许耀宗^1,2

1. 自然资源部国土卫星遥感应用中心, 北京 100048;
2. 中国矿业大学环境与测绘学院, 江苏徐州 221116

收稿日期:2022-01-20 修回日期:2022-10-17 发布日期:2023-05-27
通讯作者: 唐新明 E-mail:tangxinming99@qq.com
作者简介:李涛(1986-),男,博士,副研究员,主要从事SAR卫星的测绘及形变应用研究工作。E-mail:rs_litao@163.com
基金资助:
国家重点研发计划(2021YFC3000405);国家自然科学基金(41901303)

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

LI Tao¹, TANG Xinming¹, LI Shijin^1,2, ZHOU Xiaoqing¹, ZHANG Xiang¹, XU Yaozong^1,2

1. Land Satellite Remote Sensing Application Center, Ministry of Natural Resources, Beijing 100048, China;
2. School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China

Received:2022-01-20 Revised:2022-10-17 Published:2023-05-27
Supported by:
The National Key Research and Development Programme of China (No. 2021YFC3000405);The National Natural Science Foundation (No. 41901303)

摘要/Abstract

摘要： L波段差分干涉SAR卫星(陆探一号,LT-1)是我国第1组以干涉为核心任务的L频段全极化民用SAR卫星星座,LT-1由1型2星组成,利用差分形变测量技术完成指定区域的形变监测任务。本文综合研究了我国形变监测需求以及卫星观测能力,提出了基础形变产品的3个层次。第1层次为形变场产品,是使用同一地区两景检校的单视复数(single look complex,SLC)影像进行差分干涉生产的。第2层次为形变速率场产品,是使用同一地区多景检校的SLC影像,通过对其形变场产品进行加权堆叠生产的。第3层次为形变时序产品,是使用同一地区多景检校产品,通过时序建模生产的。本文以覆盖山西省大同市云冈区的Sentinel-1数据为例,对形变产品进行了研究分析,并对产品的特性和结果进行了初步说明。本文提出的形变产品体系能够为产品的业务化生产提供参考。

关键词: 陆探一号, 差分干涉, 堆叠, 多时相干涉, 基础形变产品

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

中图分类号:

P236

李涛, 唐新明, 李世金, 周晓青, 张祥, 许耀宗. L波段差分干涉SAR卫星基础形变产品分类[J]. 测绘学报, 2023, 52(5): 769-779.

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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L波段差分干涉SAR卫星基础形变产品分类

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

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