Academic Journal
Analysis of multistatic configurations for spaceborne SAR interferometry.
| Τίτλος: | Analysis of multistatic configurations for spaceborne SAR interferometry. |
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| Συγγραφείς: | Krieger, G., Fiedler, H., Mittermayer, J., Papathanassiou, K., Moreira, A. |
| Πηγή: | IEE Proceedings -- Radar, Sonar & Navigation. Jun2003, Vol. 150 Issue 3, p87. 10p. |
| Θεματικοί όροι: | Synthetic aperture radar, Space interferometry, Detectors, Geometric quantization |
| Περίληψη: | Spaceborne bistatic and multistatic SAR configurations are an attractive approach to acquire along-track and cross-track interferograms on a global scale. An efficient realisation of such systems may be achieved by a set of low-cost, passive receivers onboard a constellation of microsatellites which simultaneously record the backscattered signals transmitted by a conventional spaceborne radar. The authors introduce several multistatic SAR configurations suitable for global single-pass interferometry and discuss their advantages and limitations. The achievable interferometric performance is analysed in detail, taking into account thermal noise, block adaptive quantisation, range and azimuth ambiguities, and geometric decorrelation for both surface and random volume scatterers. Based on the estimated interferometric phase errors, the relative height accuracies for three illuminators (PALSAR, ASAR, TerraSAR-X) are derived. The achievable height accuracies are of the order of 2 m for PALSAR and ASAR, and of the order of 1 m for TerraSAR-X. However, it turns out that for vegetated areas, volume decorrelation may become a limiting factor for configurations with large interferometric baselines. These restrictions can be overcome by making the interferometric configuration fully polarimetric and/or increasing the number of available baselines. [ABSTRACT FROM AUTHOR] |
| Copyright of IEE Proceedings -- Radar, Sonar & Navigation is the property of Institution of Engineering & Technology and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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| Items | – Name: Title Label: Title Group: Ti Data: Analysis of multistatic configurations for spaceborne SAR interferometry. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Krieger%2C+G%2E%22">Krieger, G.</searchLink><br /><searchLink fieldCode="AR" term="%22Fiedler%2C+H%2E%22">Fiedler, H.</searchLink><br /><searchLink fieldCode="AR" term="%22Mittermayer%2C+J%2E%22">Mittermayer, J.</searchLink><br /><searchLink fieldCode="AR" term="%22Papathanassiou%2C+K%2E%22">Papathanassiou, K.</searchLink><br /><searchLink fieldCode="AR" term="%22Moreira%2C+A%2E%22">Moreira, A.</searchLink> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22IEE+Proceedings+--+Radar%2C+Sonar+%26+Navigation%22">IEE Proceedings -- Radar, Sonar & Navigation</searchLink>. Jun2003, Vol. 150 Issue 3, p87. 10p. – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Synthetic+aperture+radar%22">Synthetic aperture radar</searchLink><br /><searchLink fieldCode="DE" term="%22Space+interferometry%22">Space interferometry</searchLink><br /><searchLink fieldCode="DE" term="%22Detectors%22">Detectors</searchLink><br /><searchLink fieldCode="DE" term="%22Geometric+quantization%22">Geometric quantization</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Spaceborne bistatic and multistatic SAR configurations are an attractive approach to acquire along-track and cross-track interferograms on a global scale. An efficient realisation of such systems may be achieved by a set of low-cost, passive receivers onboard a constellation of microsatellites which simultaneously record the backscattered signals transmitted by a conventional spaceborne radar. The authors introduce several multistatic SAR configurations suitable for global single-pass interferometry and discuss their advantages and limitations. The achievable interferometric performance is analysed in detail, taking into account thermal noise, block adaptive quantisation, range and azimuth ambiguities, and geometric decorrelation for both surface and random volume scatterers. Based on the estimated interferometric phase errors, the relative height accuracies for three illuminators (PALSAR, ASAR, TerraSAR-X) are derived. The achievable height accuracies are of the order of 2 m for PALSAR and ASAR, and of the order of 1 m for TerraSAR-X. However, it turns out that for vegetated areas, volume decorrelation may become a limiting factor for configurations with large interferometric baselines. These restrictions can be overcome by making the interferometric configuration fully polarimetric and/or increasing the number of available baselines. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of IEE Proceedings -- Radar, Sonar & Navigation is the property of Institution of Engineering & Technology and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1049/ip-rsn:20030441 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 87 Subjects: – SubjectFull: Synthetic aperture radar Type: general – SubjectFull: Space interferometry Type: general – SubjectFull: Detectors Type: general – SubjectFull: Geometric quantization Type: general Titles: – TitleFull: Analysis of multistatic configurations for spaceborne SAR interferometry. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Krieger, G. – PersonEntity: Name: NameFull: Fiedler, H. – PersonEntity: Name: NameFull: Mittermayer, J. – PersonEntity: Name: NameFull: Papathanassiou, K. – PersonEntity: Name: NameFull: Moreira, A. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2003 Type: published Y: 2003 Identifiers: – Type: issn-print Value: 13502395 Numbering: – Type: volume Value: 150 – Type: issue Value: 3 Titles: – TitleFull: IEE Proceedings -- Radar, Sonar & Navigation Type: main |
| ResultId | 1 |