In order to excise transient interferences in the skywave over-the-horizon radar, regular time-domain methods use steps as interference localization, interference blanking and data restoration. The interference excision performance depends highly on the interference localization performance. In the real system, the constant threshold detection method is adopted. However, it can not provide reliable localization performance. Some other existing methods need large computational costs and are sensitive to the parameters. To solve these problems, an iteratively censored average detector is proposed. The proposed detector removes the interference samples from the iterative estimating procedure and adopts a forward-backward localizing method to ensure the reliability of the localization performance. The experimental data collected from a trial skywave over-the-horizon radar are used. Results verify the effectiveness of the proposed method.
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LIU Ziwei, SU Hongtao, HU Qinzhen. Transient Interference Localization Method in the Skywave Over-the-horizon Radar. JEIT, 2016, 38(10): 2482-2487.
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