THE HIGH FREQUENCY SURFACE WAVE RADAR SOLUTION FOR VESSEL TRACKING BEYOND THE HORIZON

Dejan Nikolic, Nikola Stojkovic, Pavle Petrovic, Nikola Tosic, Nikola Lekic, Zoran Stankovic, Nebojsa Doncov

DOI Number
10.2298/FUEE2001037N
First page
037
Last page
059

Abstract


With maximum range of about 200 nautical miles (approx. 370 km) High Frequency Surface Wave Radars (HFSWR) provide unique capability for vessel detection far beyond the horizon without utilization of any moving platforms. Such uniqueness requires design principles unlike those usually used in microwave radar. In this paper the key concepts of HFSWR based on Frequency Modulated Continuous (FMCW) principles are presented. The paper further describes operating principles with focus on signal processing techniques used to extract desired data. The signal processing describes range and Doppler processing but focus is given to the Digital Beamforming (DBF) and Constant False Alarm Rate (CFAR) models. In order to better present the design process, data obtained from the HFSWR sites operating in the Gulf of Guinea are used.   


Keywords

High Frequency Surface Wave, radar, maritime surveillance, Digital Beamforming, Constant False Alarm Ratio, Frequency Modulated Continuous Wave.

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