国产卫星时序InSAR形变监测精度分析

doi:10.11947/j.AGCS.2024.20230572.

测绘学报 ›› 2024, Vol. 53 ›› Issue (10): 1930-1941.doi: 10.11947/j.AGCS.2024.20230572.

• 卫星重大测绘工程“陆探一号” • 上一篇

国产卫星时序InSAR形变监测精度分析

许兵¹^,(), 朱焱¹(), 李志伟¹, 易辉伟¹, 胡妙文¹, 陈琦²^,³, 韩焜¹, 杜洵¹

^1.中南大学地球科学与信息物理学院，湖南　长沙　410083
^2.中国资源卫星应用中心，北京　100094
^3.中国四维测绘技术有限公司，北京　100089

收稿日期:2023-12-13 发布日期:2024-11-26
通讯作者: 朱焱 E-mail:xubing@csu.edu.cn;yanzhu@csu.edu.cn
作者简介:许兵（1986—），男，博士，副教授，研究方向为InSAR技术的形变监测理论与方法。E-mail：xubing@csu.edu.cn
基金资助:
国家杰出青年科学基金(41925016);国家自然科学基金(42330112);湖南省自然科学基金(2022JJ30707)

Analysis of InSAR time-series deformation monitoring accuracy of domestic satellite

Bing XU¹^,(), Yan ZHU¹(), Zhiwei LI¹, Huiwei YI¹, Miaowen HU¹, Qi CHEN²^,³, Kun HAN¹, Xun DU¹

^1.School of Geoscience and Info-Physics, Central South University, Changsha 410083, China
^2.China Centre for Resources Satellite Data and Application, Beijing 100094, China
^3.China Siwei Surveying and Mapping Technology Co., Ltd., Beijing 100089, China

Received:2023-12-13 Published:2024-11-26
Contact: Yan ZHU E-mail:xubing@csu.edu.cn;yanzhu@csu.edu.cn
About author:XU Bing (1986—), male, PhD, associate professor, majors in the theoretical and methodological work of deformation monitoring using InSAR technology. E-mail: xubing@csu.edu.cn
Supported by:
The National Science Fund for Distinguished Young Scholars(41925016);The State Key Program of National Natural Science of China(42330112);The General Program of the Natural Science Foundation of Hunan Province(2022JJ30707)

摘要/Abstract

摘要：

陆地探测一号01组卫星（LT-1）的发射成功实现了我国L波段干涉SAR卫星“从无到有”的发展。LT-1卫星因空间避障等原因，部分空间基线较长；经过调轨后，空间基线长度控制在400 m以内。为了验证LT-1卫星数据的可用性及精度，本文以山西大同矿区为例，获取了2022年12月23日至2023年5月20日共25景LT-1条带模式影像数据，分别进行差分干涉测量短基线集时序分析（SBAS）技术和永久散射体（PS）技术数据处理。对时序InSAR和GPS站点在SAR卫星视线向上的形变监测结果进行对比分析，二者差异标准差分别为5.7 mm/a（SBAS-InSAR）和3.4 mm/a（PS-InSAR），时间序列均方根误差均小于5 mm，具有高度一致性。研究表明国产LT-1卫星具备高精度的形变监测能力，为国内地形测绘及形变监测提供了可靠的数据保障。

关键词: 陆探一号, 时序InSAR, CSU-InSAR, 精度分析

Abstract:

The successful launch of the Lutan-1 satellite group (LT-1) has achieved the development of China's L-band interferometric SAR satellite from scratch. For obstacle avoidance, a small part of the spatial baselines of LT-1 satellite was long, but the length of the baseline has been controlled to within 400 meters after the orbit adjustment. In order to verify the availability and accuracy of LT-1 satellite data, this article takes the Datong mining area in Shanxi Province as an example and obtains 25 LT-1 strip pattern image data from December 23, 2022 to May 20, 2023, respectively, for SBAS-InSAR and PS-InSAR data processing. By comparing and analyzing the deformation monitoring results of time-series InSAR and GPS stations in the light of sight, the standard deviations of the two are 5.7 mm/a (SBAS-InSAR) and 3.4 mm/a (PS-InSAR), respectively. The root mean square error of the time series is less than 5 mm, indicating high consistency. The research has shown that domestically produced LT-1 satellites have high-precision deformation monitoring capabilities, providing reliable data assurance for domestic terrain surveying and deformation monitoring.

Key words: Lutan-1, time-series InSAR, CSU-InSAR, accuracy analysis

中图分类号:

P236

许兵, 朱焱, 李志伟, 易辉伟, 胡妙文, 陈琦, 韩焜, 杜洵. 国产卫星时序InSAR形变监测精度分析[J]. 测绘学报, 2024, 53(10): 1930-1941.

Bing XU, Yan ZHU, Zhiwei LI, Huiwei YI, Miaowen HU, Qi CHEN, Kun HAN, Xun DU. Analysis of InSAR time-series deformation monitoring accuracy of domestic satellite[J]. Acta Geodaetica et Cartographica Sinica, 2024, 53(10): 1930-1941.

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站点名	经度/(°E)	纬度/(°N)	站点名	经度/(°E)	纬度/(°N)	站点名	经度/(°E)	纬度/(°N)
GP01	112.90	39.99	GP19	113.10	40.11	GP37	112.88	40.00
GP02	112.90	40.03	GP20	112.90	40.00	GP38	112.93	39.88
GP03	112.96	39.97	GP21	112.91	39.99	GP39	113.04	40.06
GP04	112.93	39.97	GP22	112.88	39.98	GP40	113.07	40.09
GP05	112.88	39.97	GP23	112.87	40.02	GP41	113.06	40.07
GP06	112.92	39.96	GP24	112.99	40.00	GP42	112.95	39.96
GP07	112.94	39.95	GP25	113.04	40.07	GP43	113.12	40.08
GP08	112.93	39.95	GP26	113.04	40.07	GP44	113.03	40.10
GP09	112.95	39.94	GP27	112.91	39.96	GP45	113.02	40.09
GP10	113.06	40.10	GP28	112.86	39.94	GP46	113.04	40.07
GP11	113.05	40.09	GP29	112.89	39.95	GP47	113.04	40.06
GP12	113.09	40.08	GP30	112.87	39.93	GP48	113.14	40.07
GP13	112.91	40.01	GP31	112.90	39.88	GP49	113.09	40.05
GP14	112.90	40.05	GP32	112.93	39.88	GP50	113.08	40.10
GP15	112.91	40.03	GP33	112.86	39.92	GP51	113.13	40.10
GP16	112.97	40.02	GP34	112.92	40.02	GP52	113.11	40.09
GP17	112.94	40.01	GP35	112.91	40.02
GP18	112.94	40.00	GP36	112.92	40.01

序号	点号	STD/mm	序号	点号	STD/mm
1	GP16	2.13	11	GP02	0.90
2	GP24	3.01	12	GP04	1.33
3	GP28	1.31	13	GP05	1.98
4	GP29	1.49	14	GP06	2.32
5	GP30	1.28	15	GP07	0.94
6	GP31	1.38	16	GP08	1.48
7	GP32	3.23	17	GP09	1.73
8	GP44	0.77	18	GP13	1.40
9	GP45	1.65	19	GP37	2.32
10	GP01	1.62	20	GP50	1.20

站点名	GPS	InSAR	差异	站点名	GPS	InSAR	差异	站点名	GPS	InSAR	差异
GP01	-6.8	-10.7	3.9	GP19	-24.6	-23.8	-0.8	GP35	-3.9	-2.6	-1.3
GP02	-5.6	-6.5	0.9	GP20	-16.0	-16.5	0.5	GP36	-5.7	-3.6	-2.1
GP04	-24.5	-16.6	-7.9	GP21	10.7	10.7	0.0	GP37	-26.2	-26.3	0.1
GP05	-16.2	-12.0	-4.2	GP22	-4.5	-6.3	1.8	GP38	8.1	6.3	1.8
GP06	-39.9	-36.6	-3.3	GP23	-9.8	-7.6	-2.2	GP39	-11.3	-20.3	9.0
GP08	-40.9	-28.9	-12.0	GP24	-22.0	-16.2	-5.8	GP40	-3.0	-2.1	-0.9
GP09	-23.1	-0.2	-22.9	GP25	-9.5	-12.3	2.8	GP41	16.6	21.0	-4.4
GP10	-115.5	-120.8	5.3	GP26	-1.5	-5.0	3.5	GP42	-25.2	-25.1	-0.1
GP11	-37.5	-38.1	0.6	GP27	-66.9	-63.8	-3.1	GP43	-11.2	-17.7	6.5
GP12	2.0	1.5	0.5	GP28	-2.1	-1.1	-1.0	GP46	-20.6	-21.6	1.0
GP13	-3.2	-7.3	4.1	GP29^*	0.0	0.0	0.0	GP47	-17.2	-15.6	-1.6
GP14	13.1	13.2	-0.1	GP30	-11.9	-12.2	0.3	GP48	-40.4	-33.0	-7.4
GP15	-8.7	-8.5	-0.2	GP31	-24.6	-6.6	-18.0	GP49	-4.6	2.3	-6.9
GP16	-28.6	-15.9	-12.7	GP32	2.5	6.3	-3.8	GP50	-7.2	-6.0	-1.2
GP17	-21.5	-16.1	-5.4	GP33	-1.7	-2.1	0.4	GP51	-5.6	-8.4	2.8
GP18	1.6	7.4	-5.8	GP34	0.5	0.1	0.4	GP52	-7.6	-8.0	0.4

站点名	GPS	InSAR	差异	站点名	GPS	InSAR	差异
GP01	-6.8	-3.5	-3.3	GP21	10.7	9.2	1.5
GP02	-5.6	-5.9	0.3	GP22	-4.5	0.8	-5.3
GP03	-66.6	-63.6	-3	GP23	-9.8	-11.2	1.4
GP04	-24.5	-28.6	4.1	GP24	-22	-25.4	3.4
GP05	-16.2	-19	2.8	GP28	-2.1	2.3	-4.4
GP06	-39.9	-41.8	1.9	GP29^*	0	0	0
GP08	-40.9	-37.3	-3.6	GP30	-11.9	-15.4	3.5
GP13	-3.2	-0.1	-3.1	GP33	-1.7	3.7	-5.4
GP14	13.1	17.8	-4.7	GP34	0.5	5.4	-4.9
GP15	-8.7	-12.9	4.2	GP35	-3.9	-1.3	-2.6
GP18	1.6	-1.5	3.1	GP36	-5.7	-9	3.3
GP20	-16	-13.9	-2.1	GP42	-25.2	-27.7	2.5

站点名	RMSE	站点名	RMSE	站点名	RMSE	站点名	RMSE	站点名	RMSE
GP01	0.7	GP13	1.5	GP23	1.9	GP33	1.5	GP43	1.5
GP02	0.8	GP14	2.2	GP24	2.1	GP34	1.2	GP46	1.8
GP04	2.5	GP15	1.1	GP25	1.5	GP35	1.1	GP47	2.0
GP05	1.3	GP16	3.4	GP26	1.9	GP36	1.2	GP48	1.9
GP06	1.5	GP17	1.9	GP27	2.9	GP37	2.1	GP49	1.8
GP08	2.4	GP18	1.4	GP28	1.4	GP38	2.0	GP50	0.9
GP09	4.3	GP19	1.2	GP29	0.9	GP39	2.9	GP51	1.1
GP10	3.1	GP20	1.0	GP30	1.9	GP40	0.7	GP52	0.8
GP11	1.1	GP21	1.8	GP31	2.9	GP41	2.7
GP12	1.2	GP22	1.1	GP32	2.3	GP42	2.1

国产卫星时序InSAR形变监测精度分析

Analysis of InSAR time-series deformation monitoring accuracy of domestic satellite

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