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

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 mostappropriate models for sea clutter. The proposed decision rules are then modified to deal with the presence of thermalnoise and interfering targets. The proposed detectors are investigated on the basis of synthetic data as well as real dataof the IPIX radar database. The obtained results exhibit a high probability of detection as well as an excellent falsealarm rate regulation especially for spiky clutter.