滑坡灾害监测的圆弧合成孔径雷达大气相位校正方法

doi:10.11947/j.AGCS.2022.20220301

摘要/Abstract

摘要： 地基圆弧合成孔径雷达通过形变值测量实现滑坡预警,是一种重要的滑坡灾害监测遥感手段。大气相位校正影响形变值测量精度,是长时间稳定监测的关键技术。本文提出一种基于网格划分的两阶段大气相位校正方法。该方法通过特征提取及分类获得永久散射点,基于此实现监测点的自动筛选;利用网格估计大气相位,有效降低运算量,提高了计算效率;结合空间滤波和时间序列滤波,保证了大气相位估计的准确性。实测数据处理结果表明了该文所提方法在大气相位校正方面的有效性。

关键词: 地基圆弧合成孔径雷达, 滑坡形变监测, 大气相位校正, 永久散射体

Abstract: Ground-based arc-scanning synthetic aperture radar realizes landslide warning through deformation measurement, and it is an important remote sensing method for landslide disaster monitoring. The atmospheric phase affects the accuracy of deformation value measurement, and the correction of the atmospheric phase is a key technology for long-term stable monitoring of the area of interest. In this paper, a two-stage atmospheric phase correction method based on grid division is proposed. This method obtains permanent scattering points through feature extraction and classification, realizes automatic screening of control points, and estimates atmospheric phase based on the grid. It effectively reduces the amount of computation, improves computational efficiency, and ensures the accuracy of atmospheric phase estimation by combining spatial and temporal filtering. The experimental results show the effectiveness of the proposed method in atmospheric phase correction.

Key words: ground-based arc-scanning synthetic aperture radar, landslide deformation monitoring, atmospheric phase correction, permanent scattering

中图分类号:

P237

杜年春, 王玉明, 沈向前, 谢翔. 滑坡灾害监测的圆弧合成孔径雷达大气相位校正方法[J]. 测绘学报, 2022, 51(10): 2139-2148.

DU Nianchun, WANG Yuming, SHEN Xiangqian, XIE Xiang. Correction method of atmospheric phase for arc-scanning synthetic aperture radar in landslide monitoring[J]. Acta Geodaetica et Cartographica Sinica, 2022, 51(10): 2139-2148.

参考文献

[1] 张勤, 赵超英, 丁晓利, 等. 利用GPS与InSAR研究西安现今地面沉降与地裂缝时空演化特征[J]. 地球物理学报, 2009, 52(5): 1214-1222. ZHANG Qin, ZHAO Chaoying, DING Xiaoli, et al. Research on recent characteristics of spatio-temporal evolution and mechanism of Xi'an land subsidence and ground fissure by using GPS and InSAR techniques[J]. Chinese Journal of Geophysics, 2009, 52(5): 1214-1222.
[2] 朱建军, 李志伟, 胡俊. InSAR变形监测方法与研究进展[J]. 测绘学报, 2017, 46(10): 1717-1733. DOI: 10.11947/j.AGCS.2017.20170350. ZHU Jianjun, LI Zhiwei, HU Jun. Research progress and methods of InSAR for deformation monitoring[J]. Acta Geodaetica et Cartographica Sinica, 2017, 46(10): 1717-1733. DOI: 10.11947/j.AGCS.2017.20170350.
[3] WANG H Q, ZHU J J, FU H Q, et al. Modeling and robust estimation for the residual motion error in airborne SAR interferometry [J]. IEEE Geoscience and Remote Sensing Letters, 2018,16(1): 65-69.
[4] 周吕. 雷达干涉测量地表沉降和建筑物变形监测及分析[J]. 测绘学报, 2019, 48(5): 669. DOI: 10.11947/j.AGCS.2019.20180300. ZHOU LÜ. Monitoring and analysis of surface subsidence and building deformation by radar interferometry[J]. Acta Geodaetica et Cartographica Sinica, 2019, 48(5): 669. DOI:10.11947/j.AGCS.2019.20180300.
[5] LIU Jihong, HU Jun, LI Zhiwei, et al. A method for measuring 3D surface deformations with InSAR based on strain model and variance component estimation[J]. IEEE Transactions on Geoscience and Remote Sensing, 2017, 56(1):239-250.
[6] 张勤, 赵超英, 陈雪蓉. 多源遥感地质灾害早期识别技术进展与发展趋势. 测绘学报,2022,51(6):885-896. DOI: 10.11947/j.AGCS.2022.20220132. ZHANG Qin, ZHAO Chaoying, CHEN Xuerong. Technical progress and development trend of geological hazards early identification with multi-source remote sensing. Acta Geodaetica et Cartographica Sinica, 2022, 51(6): 885-896. DOI: 10.11947/j.AGCS.2022.20220132.
[7] YU Chen, LI Zhenhong, BAI Lin, et al.Successful applications of generic atmospheric correction online service for InSAR (GACOS) to the reduction of atmospheric effects on InSAR observations[J]. Journal of Geodesy and Geoinformation Science,2021,4(1):109-115. DOI: 10.11947/j.JGGS.2021.0113.
[8] 陶秋香, 刘国林. 永久散射体差分干涉测量技术中SAR影像精配准的一种新方法[J]. 测绘学报, 2012, 41(1): 69-73. TAO Qiuxiang, LIU Guolin. A new method for fine registration of SAR images in PS InSAR[J]. Acta Geodaetica et Cartographica Sinica, 2012, 41(1): 69-73.
[9] 陈强, 罗容, 杨莹辉, 等. 利用SAR影像配准偏移量提取地表形变的方法与误差分析[J]. 测绘学报, 2015, 44(3): 301-308. DOI: 11947/j.AGCS.2015.20130782. CHEN Qiang, LUO Rong, YANG Yinghui, et al. Method and accuracy of extracting surface deformation field from SAR image coregistration[J]. Acta Geodaetica et Cartographica Sinica, 2015, 44(3): 301-308. DOI: 11947/j.AGCS.2015.20130782.
[10] 李振洪, 朱武, 余琛, 等. 雷达影像地表形变干涉测量的机遇、挑战与展望[J]. 测绘学报,2022,51(7):1485-1519. DOI: 10.11947/j.AGCS.2022.20220224. LI Zhenhong, ZHU Wu, YU Chen, et al. Interferometric synthetic aperture radar for deformation mapping: opportunities, challenges and the outlook[J]. Acta Geodaetica et Cartographica Sinica, 2022, 51(7): 1485-1519. DOI: 10.11947/j.AGCS.2022.20220224.
[11] 曾涛, 邓云开, 胡程, 等. 地基差分干涉雷达发展现状及应用实例[J]. 雷达学报, 2019, 8(1): 154-170. ZENG Tao, DENG Yunkai, HU Cheng, et al. Development state and application examples of ground-based differential interferometric radar[J]. Journal of Radars, 2019, 8(1): 154-170.
[12] PIERACCINI M, MICCINESI L. Ground-based radar interferometry: a bibliographic review[J]. Remote Sensing, 2019, 11(9):1029.
[13] MONSERRAT O, CROSETTO M, LUZI G. A review of ground-based SAR interferometry for deformation measurement[J]. ISPRS Journal of Photogrammetry and Remote Sensing, 2014, 93:40-48.
[14] MICHELE C, ORIOL M, GUIDO L, et al. Discontinuous GBSAR deformation monitoring[J]. ISPRS Journal of Photogrammetry and Remote Sensing, 2014, 93:136-141.
[15] WERNER C, WIESMANN A, STROZZI T, et al. The GPRI multi-mode differential interferometric radar for ground-based observations[C]//Proceedings of the 9th European Conference on Synthetic Aperture Radar. Nuremberg, Germany: IEEE, 2012:304-307.
[16] DICK G J, EBERHARDT E, CABREJOLIÉVANO A G, et al. Development of an early-warning time-of-failure analysis methodology for open-pit mine slopes utilizing ground-based slope stability radar monitoring data[J]. Canadian Geotechnical Journal, 2014, 52(4):1-15.
[17] 章亮, 任奋华, 王培涛, 等. 基于MSR300雷达监测的凹山采场降雨条件下的边坡变形及滑坡[J]. 工程科学学报, 2018, 40(4): 407-415. ZHANG Liang, REN Fenhua, WANG Peitao, et al. Investigation of deformation and failure in washan slope considering rainfall conditions based on MSR300 radar monitoring[J]. Chinese Journal of Engineering, 2018, 40(4): 407-415.
[18] RODELSPERGER S, LAUFER G, GERSTENECKER C, et al. Monitoring of displacements with ground-based microwave interferometry: IBIS-S and IBIS-L[J]. Journal of Applied Geodesy, 2010, 4(1): 41-54.
[19] LEE H, LEE J H, KIM K E, et al. Development of a truckmounted arc-scanning synthetic aperture radar[J]. IEEE Transactions on Geoscience and Remote Sensing, 2014, 52(5): 2773-2779.
[20] LUO Yunhua, SONG Hongjun, WANG R, et al. Arc FMCW SAR and applications in ground monitoring[J]. IEEE Transactions on Geoscience and Remote Sensing, 2014, 52(9):5989-5998.
[21] HU Cheng, WANG Jingyang, TIAN Weiming, et al. Design and imaging of ground-based multiple-input multiple-output synthetic aperture radar (MIMO SAR) with non-collinear arrays[J]. Sensors, 2017, 17(3):598.
[22] 董杰, 董妍. 基于气象数据的地基雷达大气扰动校正方法研究[J]. 测绘工程, 2014(10): 72-75 . DONG Jie, DONG Yan. Atmospheric artifact compensation for deformation monitoring with ground-based radar[J]. Engineering of Surveying and Mapping, 2014 (10):72-75.
[23] IANNINI L, MONTI GUARNIERI A. Atmospheric phase screen in ground-based radar: statistics and compensation[J]. IEEE Geoscience & Remote Sensing Letters, 2011, 8(3):537-541.
[24] NOFERINI L, IERACCINI M P, MECATTI D, et al. Permanent scatterers analysis for atmospheric correction in ground based SAR interferometry[J]. IEEE Transactions on Geoscience and Remote Sensing. 2005, 43(7):1459-1471.
[25] 杜顺季,田径.地基SAR大气校正方法分析与比较[J].测绘通报, 2014(S1):195-197.DOI: 10.13474/j.cnki.11- 2246.2014.0691. DU Shunji, TIAN Jing. Analysis and Comparison of Atmospheric Correction Methods for Base SAR[J]. Bulletin of Surveying and Mapping, 2014(S1):195-197.DOI: 10.13474/j.cnki.11-2246.2014.0691.
[26] 胡程, 邓云开, 田卫明, 等. 地基干涉合成孔径雷达图像非线性大气相位补偿方法[J]. 雷达学报, 2019, 8(6): 831-840. HU Cheng, DENG Yunkai, TIAN Weiming, et al. A compensation method of nonlinear atmospheric phase applied for GB-InSAR images[J]. Journal of Radars, 2019, 8(6): 831-840.
[27] DENG Yunkai, HU Cheng, TIAN Weiming, et al. A grid partition method for atmospheric phase compensation in GB-SAR[J]. IEEE Transactions on Geoscience and Remote Sensing, 2022, 60:1-13.
[28] HU Cheng, DENG Yunkai, TIAN Weiming, et al. A compensation method for a time-space variant atmospheric phase applied to time-series GB-SAR images[J]. Remote Sens., 2019, 11(20):2350.
[29] 黄平平, 谭维贤. 一种地基SAR大气干扰相位校正方法及装置: 中国,CN105678716B[P]. 2018-09-18. Huang Pingping, Tan Weixian. A ground-based SAR atmospheric interference phase correction method and device: China, CN105678716B[P]. 2018-09-18.
[30] IZUMI Y, ZOU L, KIKUTA K, et al. Iterative atmospheric phase screen compensation for near-real-time ground-based InSAR measurements over a mountainous slope[J]. IEEE Transactions on Geoscience and Remote Sensing, 2020, 58(8):5955-5968.
[31] KARUNATHIAKE A, SATO M. Atmospheric phase compensation in extreme weather conditions for ground-based SAR[J]. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020, 13(99):3806-3815.
[32] 薛海伟. 干涉合成孔径雷达测量若干关键技术研究[D]. 西安: 西安电子科技大学, 2017. XUE Haiwei. Research on key techniques for interferometric synthetic aperture radar measurement[D]. Xi'an: Xidian University, 2017.
[33] 黄长军, 夏红梅, 周吕. 基于GCP方法的地基In SAR大气扰动误差改正分析[J]. 测绘与空间地理信息, 2018, 41(10): 8-11. HUANG Changjun, XIA Hongmei, ZHOU Lü. Atmospheric disturbance error correction in GB-in SAR based on ground control point[J]. Geomatics & Spatial Information Technology, 2018, 41(10): 8-11.
[34] ZHA Zhenzhu, YANG Yue, CHEN Xinyu, et al. An improved atmospheric phase compensation approach to ground-based SAR interferometry for landslide monitoring[C]//Proceedings of the 3rd International Conference on Communication, Image and Signal Processing. Sanya, China, 2018:1-7.
[35] ZHAO Xiaoxia, LAN Hengxing, LI Langping, et al. A multiple-regression model considering deformation information for atmospheric phase screen compensation in ground-based SAR[J]. IEEE Transactions on Geoscience and Remote Sensing,2020,58(2):777-789.
[36] RODON J R, BROQUETAS A, MONTI GUARNIERI A, et al. Geosynchronous SAR focusing with atmospheric phase screen retrieval and compensation[J]. IEEE Transactions on Geoscience & Remote Sensing, 2013, 51(8):4397-4404.
[37] ITU-R. The radio refractive index: its formula and refractivity data: P.453-14-2019 [S]. Geneva ,Switzerland: International Telecommunication Union,2019.
[38] WEBB A R, COPSEY K D, CAWLEY G. Statistical Pattern Recognition[M], 3rd ed. Hoboken,USA:Wiley, 2002.