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A computationally efficient adaptive beamforming algorithm for high-frequency (HF) sky wave over-the-horizon radar to suppress the spatially nonstationary HF interference while preserving the temporal coherence of the clutter echoes is proposed. The proposed algorithm is based on the generalised sidelobe canceller structure with constraint on the time-varying weight vectors. Experimental data-processing...
A track-before-detect (TBD) algorithm based on the Rao-Blackwellised particle filter (RBPF) is proposed for over-the-horizon radar (OTHR) target detection and tracking. Since the unthresholded measurements are integrated over time in the TBD algorithm, it can potentially detect and track targets with a much lower signal-to-noise ratio than conventional methods. In order to take advantage of the TBD...
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