PS-InSAR技术地面沉降研究与展望Development and prospect of the permanent scatterers technique on landsubsidence
陈基伟
摘要(Abstract)：
近年来,合成孔径雷达差分干涉测量(D-InSAR)技术在许多领域取得了良好的应用成果,但D-In-SAR确受时间失相干因素影响很大,同时大气效应也会影响D-InSAR的测量精度。1999年Ferrettit提出了永久散射体技术(Perm anent Scatterer,PS),它通过识别SAR图像中的永久散射体,消除大气影响,充分利用长基线距的干涉图像对,最大限度地提高数据的利用率,能取得毫米级的地表形变测量精度,因而大大增强了干涉测量的环境适应能力及其精度。本文着重介绍了PS技术原理,对其与D-InSAR相互关系进行了讨论,最后在地面沉降监测等领域开展这项研究潜力进行了展望。
关键词(KeyWords)： PS-InSAR;D-InSAR;角反射器;形变;地面沉降;DEM
基金项目(Foundation):
作者(Author): 陈基伟
参考文献(References)：
- [1]Ferretti A,Prati C,Rocca F.Permanent scatterers inSAR interferometry[J].Geoscience and Remote Sens-ing,IEEE Transactions onVolume 39,Issue 1,Jan.2001.
- [2]Warren M,Sowter A,Bingley R.A DEM-ree approachto persistent point scatterer interferometry[C]//3rdIAG/12th FIG Symposium Baden,May 22-24,2006.
- [3]Bamler R.,Kampes B.,Adam N.,et al.Assessmentof slow deformations and rapid motions by radar interfer-ometry[C]//Photogrammetric Week 05.DieterFritsch,Ed.Wichmann Verlag,Heidelberg 2005.
- [4]M A Warren,A Sowter,R M.Bingley.An InSAR Per-sistent Scatterer approach that doesn't use a DEM:a pa-per study[EB/OL].www.nottingham.ac.uk/iessg/research/res_publication/rp2005/warren_1_05.pdf.
- [5]AFerretti,Novali F,B櫣rgmann R,et al.InSAR perma-nent scatterer analysis reveals ups and downs in SanFrancisco bay area[J].Eos,Vol.85,No.34,24August 2004.
- [6]Donald M U,Kiyoshi H,Genya S.Assessment of smallpassive corner reflectors for geometric correction of radarfine mode SAR data[C]//22nd Asian Conference OnRemote Sensing,5-9 Nov.2001.Singapore.
- [7]Adama N,Kampesa B,Einedera M,et al.The develop-ment of a scientific permanent scatterer system[EB/OL].www.ipi.uni-hannover.de/html/publika-tionen/2003/workshop/adam.pdf.
- [8]Ramon F H.Subsidence monitoring using contiguous andPS-InSAR:quality assessment based on precision and re-liability[C]//Proceedings of 11th FIG Symposium onDeformation Measurements,Santorini,Greece,2003.
- [9]Haynes M.Corner reflector aspects of the SNAP pro-gram:Demonstrating the utility of differential SAR inter-ferometry for the assessment of earthquake risk[C]//FRINGE'99-Advancing ERS SAR Interferometry fromApplications towards Operations.Li埁ge,10-12 Novem-ber'99.
- [10]GSF-Forschungszentrum fuer Umwelt und GesundheitGmbH.Landslide monitoring in the three gorges area u-sing D-InSAR and corner reflectors[EB/OL].www.gfz-potsdam.de/pb1/pg5/research/methods/insar/web_threegorges.pdf.
- [11]成英燕,等.用InSAK技术进行形变监测的研究[J].测绘科学,2006,31(3).
- [12]潘锋.精准监测地壳断层运动[EB/OL].http://www.sciencenet.cn/html/shownews.aspx-id=119618,2004-7-5.
- [13]Bamler et al.Assessment of SlowDeformations and Rap-id Motions by Radar Interferometry[C]//Photogram-metric Week 05,111-122,Wichmann Verlag,Heidel-berg,2005.
- [14]陈强,刘国祥,李永树,丁晓利.干涉雷达永久散射体自动探测——算法与实验结果[J].测绘学报,2006(2):112-117.