3 May 2012 High-resolution time-frequency representations based on the local polynomial Fourier transform for over-the-horizon radars
Author Affiliations +
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.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Igor Djurovic, Igor Djurovic, Slobodan Djukanovic, Slobodan Djukanovic, Moeness G. Amin, Moeness G. Amin, Yimin D. Zhang, Yimin D. Zhang, Braham Himed, Braham Himed, } "High-resolution time-frequency representations based on the local polynomial Fourier transform for over-the-horizon radars", Proc. SPIE 8361, Radar Sensor Technology XVI, 836105 (3 May 2012); doi: 10.1117/12.919954; https://doi.org/10.1117/12.919954
PROCEEDINGS
10 PAGES


SHARE
Back to Top