In this paper, we study the performances of a novel CFAR in homogeneous environment. This processor consists to take maximum power of cells in the reference windows and multiply it by a coefficient α (α <1) to obtain the background level estimate. We assume that the target is embedded in a white Gaussian noise and fluctuate according to a Swirling I model. Closed form expressions of the probabilities of detection and false alarm are determined and the performance of the proposed detector is investigated. Figure 3: Threshold multiplier versus Figure 4: Probability of detection versus SNR(dB) for α (for wmaxcfar) or k(for os-cfar) different values of Pfa (N=16 and α=0.75)
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