Abstract
InSAR enables the estimation of displacements of (objects on) the earth's surface. To provide reliable estimates, both a stochastic and mathematical model are required. However, the intrinsic problem of InSAR is that both are unknown. Here we derive the Variance-Covariance Matrix (VCM) for double differenced phase observations for an arc, i.e., the phase difference between two points relative to a reference epoch. Using the Normalized Amplitude Dispersion we subdivide the time series in multiple partitions. The method results in a more realistic stochastic model, and consequently more realistic and reliable displacement parameters. The stochastic model also allows to make statements on the precision and reliability of the estimated parameters.
Original language | English |
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Title of host publication | IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium, Proceedings |
Publisher | IEEE |
Pages | 7902-7905 |
Number of pages | 4 |
ISBN (Electronic) | 9798350320107 |
DOIs | |
Publication status | Published - 2023 |
Event | 2023 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2023) - Pasadena Convention Center, Pasadena, United States Duration: 16 Jul 2023 → 21 Jul 2023 https://2023.ieeeigarss.org/ |
Publication series
Name | International Geoscience and Remote Sensing Symposium (IGARSS) |
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Volume | 2023-July |
Conference
Conference | 2023 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2023) |
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Abbreviated title | IGARSS 2023 |
Country/Territory | United States |
City | Pasadena |
Period | 16/07/23 → 21/07/23 |
Internet address |
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-careOtherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Keywords
- InSAR
- parameter estimation
- Point Scatterers
- stochastic model