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Multistatic and Bistatic SAR: State of Affairs and Way Forward

A special issue of Remote Sensing (ISSN 2072-4292).

Deadline for manuscript submissions: closed (30 October 2019) | Viewed by 4856

Special Issue Editors


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Guest Editor
Delft University of Technology, Stevinweg 1, 2628CN Delft, The Netherlands
Interests: SAR; InSAR; bistatic SAR

E-Mail Website
Guest Editor
Microwaves and Radar Institute, German Aerospace Center, Muenchnerstrasse 20, 82234 Wessling, Germany
Interests: SAR; bistatic and multistatic SAR; InSAR

Special Issue Information

Dear Colleagues,

Bistatic and multistatic architectures have been placed at the center of several major developments in SAR remote sensing over the past fifteen years. With the improvement in the understanding of specific bistatic SAR techniques, the centroid around bistatic and multistatic SAR has transitioned from a technological perspective to being increasingly application-driven. The start in 2010 of the TanDEM-X mission, and its consistent operation ever since, marks an age of maturity for bistatic SAR paving the way to the development of more recent and drastically bistatic mission concepts such as Tandem-L, SAOCOM-CS or, more recently, STEREOID. In this Special Issue we want to provide an overview of the state of affairs in bistatic and multistatic SAR, including the current directions in which it is developing. Papers included in the SI shall provide a balanced overview of the following areas:

  • On the technology front, we will attempt at collecting an overview of instrument architectures, processing approaches and technical solutions to bistatic-specific technical challenges, such as synchronization approaches.
  • Experimental results, including results obtained with TanDEM-X data, airborne campaigns, and receivers of opportunity.
  • Bistatic scattering characteristics and forward models.
  • Bistatic and multistatic SAR applications, covering single-pass InSAR and TomoSAR applications, as well as other applications exploiting bistatic radiometry and the geometrical diversity provided by multistatic systems.
  • Future bistatic and multistatic SAR mission concepts, including on-going missions and long-term concepts.

This special issue will be also an outlet for extended versions of papers presented at the Bi and Multistatic SAR Systems and Applications workshop, co-organized by the European Space Agency and Delft University of Technology, which will take place in the period between 19 and 21 March, 2019, in Delft, The Netherlands.

Dr. Paco Lopez-Dekker
Dr. Marc Rodriguez-Cassola
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Remote Sensing is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Bistatic SAR, multistatic SAR, bistatic radar
  • Bistatic SAR processing and applications
  • Future missions
  • Bistatic Scattering Models

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Published Papers (1 paper)

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Research

18 pages, 3232 KiB  
Article
PRF Selection in Formation-Flying SAR: Experimental Verification on Sentinel-1 Monostatic Repeat-Pass Data
by Maria Daniela Graziano, Alfredo Renga, Marco Grasso and Antonio Moccia
Remote Sens. 2020, 12(1), 29; https://doi.org/10.3390/rs12010029 - 19 Dec 2019
Cited by 21 | Viewed by 4063
Abstract
Formation-flying synthetic aperture radar (FF-SAR) enables new working modes and can achieve very high performance through a series of very compact, low-weight, satellite platforms thanks to passive operations of conveniently distributed formation-flying receivers. System timing is a crucial aspect of FF-SAR. The manuscript [...] Read more.
Formation-flying synthetic aperture radar (FF-SAR) enables new working modes and can achieve very high performance through a series of very compact, low-weight, satellite platforms thanks to passive operations of conveniently distributed formation-flying receivers. System timing is a crucial aspect of FF-SAR. The manuscript presents a novel approach to pulse repetition frequency (PRF) selection in order to obtain a uniform distribution of samples at given platform positions. A digital beamforming algorithm is applied on a stack of monostatic repeat-pass images collected by the Sentinel-1 system to test the validity of the PRF selection method. Processed images were thus properly selected to achieve the best merit index measuring the quality of samples distribution. The results show that: (a) the image resulting from beamforming features better azimuth ambiguity-to-signal ratio and (b) the proposed approach for PRF selection allows one to individuate a subset of the available images leading to uniform distribution of samples which can be used to support FF-SAR processing. Full article
(This article belongs to the Special Issue Multistatic and Bistatic SAR: State of Affairs and Way Forward)
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