Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor | Department of Land Surveying and Geo-Informatics | en_US |
| dc.creator | Zhang, Bochen | - |
| dc.identifier.uri | https://theses.lib.polyu.edu.hk/handle/200/6944 | - |
| dc.language | English | en_US |
| dc.publisher | Hong Kong Polytechnic University | - |
| dc.rights | All rights reserved | en_US |
| dc.title | Estimating ionospheric TEC distributions using L-band spaceborne synthetic aperture radar associated with Wenchuan earthquake | en_US |
| dcterms.abstract | The spaceborne Interferometric synthetic aperture radar has been a widely used remote sensing technique for observing the Earth's surface, especially for measuring the Earth's topography and deformation. However, the low-frequency spaceborne SAR observations are strongly effected by the ionosphere, can lead to seriously degradation of InSAR observations if no compensation is applied. In this thesis, four approaches will be used to estimate the ionosphere effects via PolSAR and InSAR observations. From the experimental results, it is found that the absolute TEe image can be well extracted from Faraday rotation angle using full-polarization data. In the case of the InSAR measurements, we also demonstrated that the split-spectrum technique, range group delay method, and azimuth offset approach can be used in imaging the relative TEC. And the azimuth offset approach is more suitable than other two methods to separate the ionospheric contribution from ground surface motions. | en_US |
| dcterms.extent | viii, 68 p. : ill. ; 30 cm. | en_US |
| dcterms.isPartOf | PolyU Electronic Theses | en_US |
| dcterms.issued | 2012 | en_US |
| dcterms.educationalLevel | All Master | en_US |
| dcterms.educationalLevel | M.Sc. | en_US |
| dcterms.LCSH | Synthetic aperture radar. | en_US |
| dcterms.LCSH | Ionosphere. | en_US |
| dcterms.LCSH | Hong Kong Polytechnic University -- Dissertations | en_US |
| dcterms.accessRights | restricted access | en_US |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| b25987422.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 3 MB | Adobe PDF | View/Open |
Copyright Undertaking
As a bona fide Library user, I declare that:
- I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
- I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
- I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.
By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.
Please use this identifier to cite or link to this item:
https://theses.lib.polyu.edu.hk/handle/200/6944