An atmospheric phase screen estimation strategy based on multi-chromatic analysis for differential interferometric synthetic aperture radar

Biondi, Filippo and Clemente, Carmine and Orlando, Danilo (2019) An atmospheric phase screen estimation strategy based on multi-chromatic analysis for differential interferometric synthetic aperture radar. IEEE Transactions on Geoscience and Remote Sensing, 57 (9). pp. 7269-7280. ISSN 0196-2892 (https://doi.org/10.1109/TGRS.2019.2912778)

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Abstract

In synthetic aperture radar (SAR), the separation of the height between the ground subsidence phase components and the atmospheric phase delay mixed in the global SAR interferometry (InSAR) phase information is an issue of primary concern in the remote sensing community. This paper describes a complete procedure to address the challenge to estimate the atmospheric phase screen and to separate the three-phase components by exploiting only one InSAR image couple. This solution has the capability to process persistent scatterers subsidence maps potentially using only two multitemporal InSAR couples observed in any atmospheric condition. The solution is obtained by emulating the atmosphere compensation technique that is largely used by the global positioning system where two frequencies are used in order to estimate and compensate the positioning errors due to atmosphere parameters' variations. A sub-chirping and sub-Doppler algorithm for atmospheric compensation is proposed, which allows the successful separation of the height from the subsidence and the atmosphere parameters from the interferometric phase observed on one InSAR couple. The results are given processing images of two InSAR couples observed by the COSMO-SkyMed satellite system.

  • Item type:Article
    ID code:67610
    Dates:
    Date
    Event
    30 September 2019
    Published
    14 May 2019
    Published Online
    18 April 2019
    Accepted
    Notes:© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:18 Apr 2019 11:30
    Last modified:22 Apr 2024 00:41
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/67610
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