Adaptive HF interference cancellation for sky wave over-the-horizon radar

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Adaptive HF interference cancellation for sky wave over-the-horizon radar

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© The Institution of Engineering and Technology
Published

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 results show the effectiveness of the algorithm.

Inspec keywords: interference suppression; Doppler radar; array signal processing; radar clutter

Other keywords: temporal coherence; time-varying weight vectors; sky wave over-the-horizon radar; generalised sidelobe canceller structure; high-frequency radar; clutter echoes; adaptive HF interference cancellation; adaptive beamforming; data-processing

Subjects: Electromagnetic compatibility and interference; Signal processing and detection; Radar equipment, systems and applications

References

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      • L.J. Griffiths . Time-domain adaptive beamforming of HF backscatter radar signals. IEEE Trans. Antennas Propag. , 5 , 707 - 719
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      • J.M. Headrick , M.I. Skolnik . Over-the-horizon radar in HF band. Proc. IEEE , 6 , 654 - 673
    4. 4)
      • Y.I. Abromovich , N.K. Spencer , S.J. Anderson , A.Y. Gorokhov . Stochastic-constraint method in nonstationary hot-clutter cancellation. Part I: Fundamentals and supervised training applications. IEEE Trans. Aerosp. Electron. Syst. , 4 , 1271 - 1292
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