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KBARET
Fig. 1 – Signal to Disturbance Ration after STAP processing with (red) and without (blue) the use of the GIP test. The Generalized Inner Product (GIP) test measures the similarity between the unknown covariance matrix of a received signal vector for a particular range cell and a test covariance matrix that can be derived from a priori knowledge about clutter environment
Fig. 2 – SDR versus the number of homogeneous clutter range cells used for the calculation of the clutter covariance matrix. The blue line represents the results of using the KB Bayesian STAP algorithm, while the red line indicates the performance in case of standard STAP processing. As can be noted as the number of homogeneous clutter range cells increase the Conventional STAP approached the KB STAP. It is worth t pointing out that the case in which a high number of homogeneous range cells is available is extremely sporadic.
