Two novel radar detectors for spiky sea clutter with the presence of thermal noise and interfering targets

Authors: NOUH GUIDOUM, FAOUZI SOLTANI, AMAR MEZACHE

Abstract: In the context of noncoherent detection and high-resolution maritime radar system with low grazing angle, new Constant False Alarm Rate (CFAR) decision rules are suggested for two Compound Gaussian (CG) clutters namely: The K distribution and the Compound Inverse Gaussian (CIG) distribution, which are considered among the most appropriate models for sea clutter. The proposed decision rules are then modified to deal with the presence of thermal noise and interfering targets. The proposed detectors are investigated on the basis of synthetic data as well as real data of the IPIX radar database. The obtained results exhibit a high probability of detection as well as an excellent false alarm rate regulation especially for spiky clutter.

Keywords: Maritime radar, detection, compound Gaussian, thermal noise, interfering targets

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