The Multiple Aperture SAR Interferometry (MAI) Technique for the Detection of Large Ground Displacement Dynamics: An Overview
This work presents an overview of the multiple aperture synthetic aperture radar interferometric (MAI) technique, which is primarily used to measure the along-track components of the Earth’s surface deformation, by investigating its capabilities and potential applications. Such a method is widely us...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-04-01
|
| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/12/7/1189 |
| _version_ | 1797571216250241024 |
|---|---|
| author | Pietro Mastro Carmine Serio Guido Masiello Antonio Pepe |
| author_facet | Pietro Mastro Carmine Serio Guido Masiello Antonio Pepe |
| author_sort | Pietro Mastro |
| collection | DOAJ |
| description | This work presents an overview of the multiple aperture synthetic aperture radar interferometric (MAI) technique, which is primarily used to measure the along-track components of the Earth’s surface deformation, by investigating its capabilities and potential applications. Such a method is widely used to monitor the time evolution of ground surface changes in areas with large deformations (e.g., due to glaciers movements or seismic episodes), permitting one to discriminate the three-dimensional (up–down, east–west, north–south) components of the Earth’s surface displacements. The MAI technique relies on the spectral diversity (SD) method, which consists of splitting the azimuth (range) Synthetic Aperture RADAR (SAR) signal spectrum into separate sub-bands to get an estimate of the surface displacement along the azimuth (sensor line-of-sight (LOS)) direction. Moreover, the SD techniques are also used to correct the atmospheric phase screen (APS) artefacts (e.g., the ionospheric and water vapor phase distortion effects) that corrupt surface displacement time-series obtained by currently available multi-temporal InSAR (MT-InSAR) tools. More recently, the SD methods have also been exploited for the fine co-registration of SAR data acquired with the Terrain Observation with Progressive Scans (TOPS) mode. This work is primarily devoted to illustrating the underlying rationale and effectiveness of the MAI and SD techniques as well as their applications. In addition, we present an innovative method to combine complementary information of the ground deformation collected from multi-orbit/multi-track satellite observations. In particular, the presented technique complements the recently developed Minimum Acceleration combination (MinA) method with MAI-driven azimuthal ground deformation measurements to obtain the time-series of the 3-D components of the deformation in areas affected by large deformation episodes. Experimental results encompass several case studies. The validity and relevance of the presented approaches are clearly demonstrated in the context of geospatial analyses. |
| first_indexed | 2024-03-10T20:37:10Z |
| format | Article |
| id | doaj.art-c7fd47c5067b4bc58cb707696668750e |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-10T20:37:10Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-c7fd47c5067b4bc58cb707696668750e2023-11-19T20:57:51ZengMDPI AGRemote Sensing2072-42922020-04-01127118910.3390/rs12071189The Multiple Aperture SAR Interferometry (MAI) Technique for the Detection of Large Ground Displacement Dynamics: An OverviewPietro Mastro0Carmine Serio1Guido Masiello2Antonio Pepe3The University of Basilicata, School of Engineering, 85100 Potenza, ItalyThe University of Basilicata, School of Engineering, 85100 Potenza, ItalyThe University of Basilicata, School of Engineering, 85100 Potenza, ItalyNational Research Council of Italy, Institute for the Electromagnetic Sensing of the Environment (CNR-IREA), 80124 Napoli, ItalyThis work presents an overview of the multiple aperture synthetic aperture radar interferometric (MAI) technique, which is primarily used to measure the along-track components of the Earth’s surface deformation, by investigating its capabilities and potential applications. Such a method is widely used to monitor the time evolution of ground surface changes in areas with large deformations (e.g., due to glaciers movements or seismic episodes), permitting one to discriminate the three-dimensional (up–down, east–west, north–south) components of the Earth’s surface displacements. The MAI technique relies on the spectral diversity (SD) method, which consists of splitting the azimuth (range) Synthetic Aperture RADAR (SAR) signal spectrum into separate sub-bands to get an estimate of the surface displacement along the azimuth (sensor line-of-sight (LOS)) direction. Moreover, the SD techniques are also used to correct the atmospheric phase screen (APS) artefacts (e.g., the ionospheric and water vapor phase distortion effects) that corrupt surface displacement time-series obtained by currently available multi-temporal InSAR (MT-InSAR) tools. More recently, the SD methods have also been exploited for the fine co-registration of SAR data acquired with the Terrain Observation with Progressive Scans (TOPS) mode. This work is primarily devoted to illustrating the underlying rationale and effectiveness of the MAI and SD techniques as well as their applications. In addition, we present an innovative method to combine complementary information of the ground deformation collected from multi-orbit/multi-track satellite observations. In particular, the presented technique complements the recently developed Minimum Acceleration combination (MinA) method with MAI-driven azimuthal ground deformation measurements to obtain the time-series of the 3-D components of the deformation in areas affected by large deformation episodes. Experimental results encompass several case studies. The validity and relevance of the presented approaches are clearly demonstrated in the context of geospatial analyses.https://www.mdpi.com/2072-4292/12/7/1189SAR interferometry (InSAR)multiple-aperture SAR interferometry (MAI)along-track/across-track displacementspectral diversity (SD)atmospheric path delayionosphere |
| spellingShingle | Pietro Mastro Carmine Serio Guido Masiello Antonio Pepe The Multiple Aperture SAR Interferometry (MAI) Technique for the Detection of Large Ground Displacement Dynamics: An Overview Remote Sensing SAR interferometry (InSAR) multiple-aperture SAR interferometry (MAI) along-track/across-track displacement spectral diversity (SD) atmospheric path delay ionosphere |
| title | The Multiple Aperture SAR Interferometry (MAI) Technique for the Detection of Large Ground Displacement Dynamics: An Overview |
| title_full | The Multiple Aperture SAR Interferometry (MAI) Technique for the Detection of Large Ground Displacement Dynamics: An Overview |
| title_fullStr | The Multiple Aperture SAR Interferometry (MAI) Technique for the Detection of Large Ground Displacement Dynamics: An Overview |
| title_full_unstemmed | The Multiple Aperture SAR Interferometry (MAI) Technique for the Detection of Large Ground Displacement Dynamics: An Overview |
| title_short | The Multiple Aperture SAR Interferometry (MAI) Technique for the Detection of Large Ground Displacement Dynamics: An Overview |
| title_sort | multiple aperture sar interferometry mai technique for the detection of large ground displacement dynamics an overview |
| topic | SAR interferometry (InSAR) multiple-aperture SAR interferometry (MAI) along-track/across-track displacement spectral diversity (SD) atmospheric path delay ionosphere |
| url | https://www.mdpi.com/2072-4292/12/7/1189 |
| work_keys_str_mv | AT pietromastro themultipleaperturesarinterferometrymaitechniqueforthedetectionoflargegrounddisplacementdynamicsanoverview AT carmineserio themultipleaperturesarinterferometrymaitechniqueforthedetectionoflargegrounddisplacementdynamicsanoverview AT guidomasiello themultipleaperturesarinterferometrymaitechniqueforthedetectionoflargegrounddisplacementdynamicsanoverview AT antoniopepe themultipleaperturesarinterferometrymaitechniqueforthedetectionoflargegrounddisplacementdynamicsanoverview AT pietromastro multipleaperturesarinterferometrymaitechniqueforthedetectionoflargegrounddisplacementdynamicsanoverview AT carmineserio multipleaperturesarinterferometrymaitechniqueforthedetectionoflargegrounddisplacementdynamicsanoverview AT guidomasiello multipleaperturesarinterferometrymaitechniqueforthedetectionoflargegrounddisplacementdynamicsanoverview AT antoniopepe multipleaperturesarinterferometrymaitechniqueforthedetectionoflargegrounddisplacementdynamicsanoverview |