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Proceedings Paper

High-resolution time-frequency representations based on the local polynomial Fourier transform for over-the-horizon radars
Author(s): Igor Djurovic; Slobodan Djukanovic; Moeness G. Amin; Yimin D. Zhang; Braham Himed
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Paper Abstract

In this paper, we consider resolving over-the-horizon radar (OTHR) Doppler returns. A high-resolution time-frequency (TF) representation of the received signal is obtained by using the local polynomial Fourier transform (LPFT). From the optimally concentrated LPFT, multicomponent Doppler signatures, which are only several frequency bins apart, are extracted using an instantaneous frequency estimation method based on the Viterbi algorithm. The performance of the proposed method is validated using real data.

Paper Details

Date Published: 3 May 2012
PDF: 10 pages
Proc. SPIE 8361, Radar Sensor Technology XVI, 836105 (3 May 2012); doi: 10.1117/12.919954
Show Author Affiliations
Igor Djurovic, Univ. of Montenegro (Montenegro)
Slobodan Djukanovic, Univ. of Montenegro (Montenegro)
Moeness G. Amin, Villanova Univ. (United States)
Yimin D. Zhang, Villanova Univ. (United States)
Braham Himed, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 8361:
Radar Sensor Technology XVI
Kenneth I. Ranney; Armin W. Doerry, Editor(s)

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