A method for sea clutter elimination in the detector of high frequency surface wave radar
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https://doi.org/10.54939/1859-1043.j.mst.77.2022.22-29Keywords:
High frequency; Surface wave radar; Sea clutter; Adaptive CFAR.Abstract
In high frequency surface wave radars, the detection capability is limited by the first-order sea clutter spikes. The energy, location, and Doppler frequency of first-order sea clutter depend on the sea states, which is difficult to model using a fixed expression to eliminate sea clutter. Based on the characteristics of first-order sea clutter, the paper proposed a two-stage detector to eliminate sea clutter. The approach shows the capability to eliminate uncertain first-order sea clutter and detect targets in the vicinities of sea clutter in the Range – Doppler map.
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