Airborne Millimeter-Wave InSAR Terrain Mapping Experiments Based on Automatic Extraction and Interferometric Calibration of Tie-Points
Limited by meteorological conditions, airspace, complex terrain and other factors, airborne millimeter-wave InSAR will inevitably face the situation of no control point layout when acquiring terrain data in the difficult mapping areas in Southwest China, which increases the difficulty of subsequent...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-01-01
|
| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/15/3/572 |
| _version_ | 1827759539102941184 |
|---|---|
| author | Bin Zhang Futai Xie Liuliu Wang Shuang Li Lideng Wei Liang Feng |
| author_facet | Bin Zhang Futai Xie Liuliu Wang Shuang Li Lideng Wei Liang Feng |
| author_sort | Bin Zhang |
| collection | DOAJ |
| description | Limited by meteorological conditions, airspace, complex terrain and other factors, airborne millimeter-wave InSAR will inevitably face the situation of no control point layout when acquiring terrain data in the difficult mapping areas in Southwest China, which increases the difficulty of subsequent data processing. Moreover, the layout of control points in difficult mapping areas consumes a lot of manpower and time, which is not suitable for large-scale high-precision topographic mapping. To solve these problems, this paper proposes an automatic extraction of tie-points and interferometric calibration technology based on tie-points. This technology develops the automatic extraction algorithm of tie-points based on SAR + SIFT + RANSAC to obtain evenly distributed tie-points of adjacent images, and uses the evenly distributed tie-points as real known points to recalibrate the interference parameters, then carries out elevation transfer and elevation inversion through the tie-points of overlapping areas, thus realizing high-precision mapping without control points for airborne millimeter-wave InSAR. This paper uses measured data to verify the technology, and compares it with the areas with control points and marking points. The comparison results of elevation accuracy prove the feasibility and effectiveness of this method. This paper also discusses the difficulties in the treatment of typical areas, such as water areas, urban areas and mountain areas, and gives reasonable solutions that have good engineering application value. |
| first_indexed | 2024-03-11T09:28:05Z |
| format | Article |
| id | doaj.art-29ea563b71aa43978824d3b3e4d9a184 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-11T09:28:05Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-29ea563b71aa43978824d3b3e4d9a1842023-11-16T17:51:12ZengMDPI AGRemote Sensing2072-42922023-01-0115357210.3390/rs15030572Airborne Millimeter-Wave InSAR Terrain Mapping Experiments Based on Automatic Extraction and Interferometric Calibration of Tie-PointsBin Zhang0Futai Xie1Liuliu Wang2Shuang Li3Lideng Wei4Liang Feng5Beijing Institute of Radio Measurement, Beijing 100854, ChinaBeijing Institute of Radio Measurement, Beijing 100854, ChinaBeijing Institute of Radio Measurement, Beijing 100854, ChinaBeijing Institute of Radio Measurement, Beijing 100854, ChinaBeijing Institute of Radio Measurement, Beijing 100854, ChinaBeijing Institute of Radio Measurement, Beijing 100854, ChinaLimited by meteorological conditions, airspace, complex terrain and other factors, airborne millimeter-wave InSAR will inevitably face the situation of no control point layout when acquiring terrain data in the difficult mapping areas in Southwest China, which increases the difficulty of subsequent data processing. Moreover, the layout of control points in difficult mapping areas consumes a lot of manpower and time, which is not suitable for large-scale high-precision topographic mapping. To solve these problems, this paper proposes an automatic extraction of tie-points and interferometric calibration technology based on tie-points. This technology develops the automatic extraction algorithm of tie-points based on SAR + SIFT + RANSAC to obtain evenly distributed tie-points of adjacent images, and uses the evenly distributed tie-points as real known points to recalibrate the interference parameters, then carries out elevation transfer and elevation inversion through the tie-points of overlapping areas, thus realizing high-precision mapping without control points for airborne millimeter-wave InSAR. This paper uses measured data to verify the technology, and compares it with the areas with control points and marking points. The comparison results of elevation accuracy prove the feasibility and effectiveness of this method. This paper also discusses the difficulties in the treatment of typical areas, such as water areas, urban areas and mountain areas, and gives reasonable solutions that have good engineering application value.https://www.mdpi.com/2072-4292/15/3/572interferometric synthetic aperture radar (InSAR)terrain mappingtie-pointsautomatic extractioninterferometric calibrationmapping without ground control points |
| spellingShingle | Bin Zhang Futai Xie Liuliu Wang Shuang Li Lideng Wei Liang Feng Airborne Millimeter-Wave InSAR Terrain Mapping Experiments Based on Automatic Extraction and Interferometric Calibration of Tie-Points Remote Sensing interferometric synthetic aperture radar (InSAR) terrain mapping tie-points automatic extraction interferometric calibration mapping without ground control points |
| title | Airborne Millimeter-Wave InSAR Terrain Mapping Experiments Based on Automatic Extraction and Interferometric Calibration of Tie-Points |
| title_full | Airborne Millimeter-Wave InSAR Terrain Mapping Experiments Based on Automatic Extraction and Interferometric Calibration of Tie-Points |
| title_fullStr | Airborne Millimeter-Wave InSAR Terrain Mapping Experiments Based on Automatic Extraction and Interferometric Calibration of Tie-Points |
| title_full_unstemmed | Airborne Millimeter-Wave InSAR Terrain Mapping Experiments Based on Automatic Extraction and Interferometric Calibration of Tie-Points |
| title_short | Airborne Millimeter-Wave InSAR Terrain Mapping Experiments Based on Automatic Extraction and Interferometric Calibration of Tie-Points |
| title_sort | airborne millimeter wave insar terrain mapping experiments based on automatic extraction and interferometric calibration of tie points |
| topic | interferometric synthetic aperture radar (InSAR) terrain mapping tie-points automatic extraction interferometric calibration mapping without ground control points |
| url | https://www.mdpi.com/2072-4292/15/3/572 |
| work_keys_str_mv | AT binzhang airbornemillimeterwaveinsarterrainmappingexperimentsbasedonautomaticextractionandinterferometriccalibrationoftiepoints AT futaixie airbornemillimeterwaveinsarterrainmappingexperimentsbasedonautomaticextractionandinterferometriccalibrationoftiepoints AT liuliuwang airbornemillimeterwaveinsarterrainmappingexperimentsbasedonautomaticextractionandinterferometriccalibrationoftiepoints AT shuangli airbornemillimeterwaveinsarterrainmappingexperimentsbasedonautomaticextractionandinterferometriccalibrationoftiepoints AT lidengwei airbornemillimeterwaveinsarterrainmappingexperimentsbasedonautomaticextractionandinterferometriccalibrationoftiepoints AT liangfeng airbornemillimeterwaveinsarterrainmappingexperimentsbasedonautomaticextractionandinterferometriccalibrationoftiepoints |