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Article: An elevation model of InSAR and its accuracy analysis
Title | An elevation model of InSAR and its accuracy analysis |
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Authors | |
Keywords | Error propagation Parallel ray approximation Baseline Elevation model InSAR |
Issue Date | 2007 |
Citation | Geomatics and Information Science of Wuhan University, 2007, v. 32, n. 2 How to Cite? |
Abstract | An improved elevation model of InSAR which expresses the direct relationship between height and phase has been developed based on the InSAR elevation model of Currie and Baker. The errors introduced by the parallel ray approximation applied in the improved model are analyzed, and the results verify that it can not be ignored for satellite radar system. The error propagation curves and the relation between elevation errors and baseline parameters are also given which can be used to rectify the approximation errors and reconstruct the high accurate digital elevation model (DEM). In addition, based on the improved model and error propagation law, an elevation error estimation formula is derived. It gives the definite effect of the baseline length and angle on the elevation accuracy. |
Persistent Identifier | http://hdl.handle.net/10722/266870 |
ISSN | 2023 SCImago Journal Rankings: 0.386 |
DC Field | Value | Language |
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dc.contributor.author | Zhang, Lei | - |
dc.contributor.author | Wu, Jicang | - |
dc.contributor.author | Chen, Yanling | - |
dc.date.accessioned | 2019-01-31T07:19:51Z | - |
dc.date.available | 2019-01-31T07:19:51Z | - |
dc.date.issued | 2007 | - |
dc.identifier.citation | Geomatics and Information Science of Wuhan University, 2007, v. 32, n. 2 | - |
dc.identifier.issn | 1671-8860 | - |
dc.identifier.uri | http://hdl.handle.net/10722/266870 | - |
dc.description.abstract | An improved elevation model of InSAR which expresses the direct relationship between height and phase has been developed based on the InSAR elevation model of Currie and Baker. The errors introduced by the parallel ray approximation applied in the improved model are analyzed, and the results verify that it can not be ignored for satellite radar system. The error propagation curves and the relation between elevation errors and baseline parameters are also given which can be used to rectify the approximation errors and reconstruct the high accurate digital elevation model (DEM). In addition, based on the improved model and error propagation law, an elevation error estimation formula is derived. It gives the definite effect of the baseline length and angle on the elevation accuracy. | - |
dc.language | eng | - |
dc.relation.ispartof | Geomatics and Information Science of Wuhan University | - |
dc.subject | Error propagation | - |
dc.subject | Parallel ray approximation | - |
dc.subject | Baseline | - |
dc.subject | Elevation model | - |
dc.subject | InSAR | - |
dc.title | An elevation model of InSAR and its accuracy analysis | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.scopus | eid_2-s2.0-33947260600 | - |
dc.identifier.volume | 32 | - |
dc.identifier.issue | 2 | - |
dc.identifier.spage | null | - |
dc.identifier.epage | null | - |
dc.identifier.issnl | 1671-8860 | - |