An Implementation of DBF and CFAR Models in OTHR Signal Processing

Abstract

In this paper an implementation of signal processing techniques used in over the horizon radar (OTHR) signal processing are presented. The paper describes all signal processing steps suitable for OTHR based on frequency modulated continuous wave (FMCW) principle. Main focus is given to the Digital Beamforming (DBF) and Constant False Alarm Ration (CFAR) models, but the other steps are presented as well. All steps are demonstrated on real data obtained from the sites located in the Gulf of Guinea.