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False Alarm Reduction in Wavelength-Resolution SAR Change Detection Using Adaptive Noise Canceler
Blekinge Institute of Technology, Faculty of Engineering, Department of Mathematics and Natural Sciences.
Blekinge Institute of Technology, Faculty of Engineering, Department of Mathematics and Natural Sciences.ORCID iD: 0000-0002-6643-312X
Federal University of Santa Maria, BRA.
Saab Electronic Defense Systems, SWE.
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2017 (English)In: IEEE Transactions on Geoscience and Remote Sensing, ISSN 0196-2892, E-ISSN 1558-0644, Vol. 55, no 1, 591-599 p.Article in journal (Refereed) Published
Abstract [en]

This paper introduces a method to reduce false alarms in wavelength-resolution synthetic aperture radar (SAR) change detection and aims at very high frequency-band systems like the Coherent All Radio Band System (CARABAS). The false alarms are usually caused by the elongated structures, such as power lines and fences, which stand out from the background. The responses of elongated structures are sensitive to flight path. The introduced method aims at minimizing the false alarms caused by the elongated structures and is based on the well-known adaptive processing mechanism, i.e., the so-called adaptive noise canceler (ANC) where a separate reference signal is required. The changes between measurements are considered by the input signal of ANC while the separate reference signal comes from the measurements without change. Hence, the method requires three SAR images associated with three measurements, with no changes between two of them. The reference data for the study are provided by CARABAS. The experimental results indicate that the method can reduce false alarms significantly and provide high probability of detection (≥98%). The experimental results also show that the method still works well even in the case where the flight tracks of the SAR system in the change detection measurements are slightly different.

Place, publisher, year, edition, pages
2017. Vol. 55, no 1, 591-599 p.
Keyword [en]
Adaptive signal processing; change detection; statistics; synthetic aperture radar (SAR)
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:bth-13888DOI: 10.1109/TGRS.2016.2611684ISI: 000391527900046OAI: oai:DiVA.org:bth-13888DiVA: diva2:1075848
Available from: 2017-02-21 Created: 2017-02-21 Last updated: 2017-02-24Bibliographically approved

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Vu, Viet ThuyPettersson, Mats
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