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Performance of Moving Target Parameter Estimation Using SAR
Blekinge Institute of Technology, Faculty of Engineering, Department of Mathematics and Natural Sciences.ORCID iD: 0000-0002-6643-312X
2015 (English)In: IEEE Transactions on Aerospace and Electronic Systems, ISSN 0018-9251, Vol. 51, no 2, 1191-1202 p.Article in journal (Refereed) Published
Abstract [en]

Synthetic aperture radar (SAR) gives not only the opportunity to image targets with high resolution but also to measure their position and velocity. Without acceleration (constant speed), the position and velocity both in range and azimuth can be estimated using a multichannel SAR system. This paper introduces a method to find the lower bound on variance of estimate of position and velocity for targets. The method is based on the assumptions needed for the Cramer-Rao lower bound (CRLB). The method works for both narrowband (NB) and ultrawideband (UWB) SAR systems. For demonstration, a monostatic single-channel UWB SAR system operating at low frequency is used. Thus, only lower bounds for estimate variance of azimuth, range, and relative speed are derived.

Place, publisher, year, edition, pages
2015. Vol. 51, no 2, 1191-1202 p.
Keyword [en]
Radar astronomy, Ultra-wideband (UWB) Constant speed, High resolution, Low-frequency, Moving targets, Multichannel, Relative speed, Single channels, Variance of estimates
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:bth-10586DOI: 10.1109/TAES.2015.120327ISI: 000356969500032OAI: oai:DiVA.org:bth-10586DiVA: diva2:853521
Available from: 2015-09-14 Created: 2015-09-14 Last updated: 2016-05-24Bibliographically approved

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