access icon openaccess Method for weak target detection in sea environment

This is an open access article published by the IET under the Creative Commons Attribution-NonCommercial-NoDerivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/)
Received 25/02/2019, Accepted 20/05/2019, Published 11/07/2019

In this study, a new method for sea surface target detection in low signal-to-clutter environment is proposed, which can not only reduce the computation amount but also suppress the sea clutter, static targets and noise. Firstly, the authors use a more general echo signal model, which is more matching for the sea environment. Next, a fast estimation technique with few searching times to reduce the computation of the detection process is put forward. Then, a canceller is designed, which has the merit of suppressing the strong sea clutter, static targets, and noise. Finally, the experiment results demonstrate that the proposed method can achieve high detection probability, fast estimation, and strong suppression ability.

Inspec keywords: echo; radar signal processing; radar detection; radar clutter; target tracking; probability; object detection

Other keywords: signal model; signal-to-clutter environment; weak target detection; sea surface target detection; static targets; strong sea clutter; strong suppression ability; high detection probability; sea environment; detection process; fast estimation technique

Subjects: Radar equipment, systems and applications; Optical, image and video signal processing; Other topics in statistics; Signal processing and detection

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