Abstract:Ionosphere phase contamination seriously restrains the detection performance of Over-The-Horizon Radar (OTHR) for low detectable targets, such as slow ships, and approaches of time-frequency correction are proposed and classified for effective target detection. A comprehensive performance evaluation of six typical approaches of time-frequency correction based on the key factor analysis of performance comparison is carried out in terms of decontamination effectiveness, robustness analysis and the computational load complexity. This research is of great reference for further development of ionosphere phase decontamination algorithm library and the practical engineering implementation.
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