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Impact of Ambiguity Statistics on Information Retrieval for Conventional and Novel SAR Modes

Ustalli, Nertjana and Villano, Michelangelo (2020) Impact of Ambiguity Statistics on Information Retrieval for Conventional and Novel SAR Modes. In: Proceedings of the IEEE Radar Conference. IEEE Radar Conference (RadarCon), 2020-09-21 - 2020-09-25, Florence, Italy.

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Abstract

Synthetic aperture radar (SAR) is an all-weather imaging tool with several applications in the field of Earth observation. In recent years, novel SAR modes have been developed, where either the pulse repetition interval (PRI) or the transmitted waveform or phase is continuously varied, leading to smeared ambiguities. Ambiguities with the same total energy but different statistical distributions are likely to have different influences on the retrieval of information from SAR images. This paper analyzes the ambiguity statistics and addresses their impact on selected applications for conventional and novel SAR modes through simple models and simulations based on TerraSAR-X and TanDEM-X data. The reported results show that an understanding of the ambiguity statistics and of the impact of their smearing on product performance is fundamental to select the SAR operation mode within the design of future SAR systems.

Item URL in elib:https://elib.dlr.de/136591/
Document Type:Conference or Workshop Item (Lecture)
Title:Impact of Ambiguity Statistics on Information Retrieval for Conventional and Novel SAR Modes
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Ustalli, NertjanaNertjana.Ustalli (at) dlr.deUNSPECIFIED
Villano, MichelangeloMichelangelo.Villano (at) dlr.dehttps://orcid.org/0000-0002-1769-6927
Date:2020
Journal or Publication Title:Proceedings of the IEEE Radar Conference
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Status:Published
Keywords:Synthetic aperture radar (SAR), high-resolution wide-swath (HRWS), staggered SAR, waveform-encoded SAR, azimuth phase coding, range and azimuth ambiguities
Event Title:IEEE Radar Conference (RadarCon)
Event Location:Florence, Italy
Event Type:international Conference
Event Dates:2020-09-21 - 2020-09-25
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Vorhaben Tandem-L Vorstudien (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Microwave Systems
Deposited By: Ustalli, Nertjana
Deposited On:13 Jan 2021 11:24
Last Modified:18 Feb 2022 11:28

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