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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2018-04-06
Accurate Parameter Estimation of Over -the-Horizon Radar Signals Using RANSAC and MUSIC Algorithms
By
Igor Djurovic,

    Dr. Igor Djurovic

    Univ Montenegro

    Montenegro

    Homepage

Yimin D. Zhang

    Dr. Yimin D. Zhang

    Department of Electrical and Computer Engineering

    Temple University

    USA

    Homepage

Progress In Electromagnetics Research M, Vol. 67, 85-93, 2018
doi:10.2528/PIERM18022004 | Google Scholar

Abstract
Processing over-the-horizon radar (OTHR) signals is challenging due to appearance of several very close components in the time-frequency plane, strong noise and clutter, multipath propagation, and aliasing. We propose a two-stage procedure for estimating multipath signal components from the received mixture. In the first stage, the instantaneous frequency is estimated from the time-frequency representation of the received signal. The random samples consensus algorithm is applied to the instantaneous frequency estimate to improve the robustness of the procedure against various effects in the underlying signals. In the second stage, the MUSIC algorithm is applied to the dechirped and downsampled signal. The effectiveness of the proposed approach is verified using real-life signals.
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Citation
Igor Djurovic, and Yimin D. Zhang, "Accurate Parameter Estimation of Over -the-Horizon Radar Signals Using RANSAC and MUSIC Algorithms," Progress In Electromagnetics Research M, Vol. 67, 85-93, 2018.
doi:10.2528/PIERM18022004
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