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The paper discuss, applicability of the second-order Newton gradient descent method for blind equalization of complex signals based on the Constant Modulus Algorithm (CMA). The Constant Modulus (CM) loss function is real with complex valued arguments, and, hence, non-analytic. The Hessian for noiseless FIR channels and rederive the known fact that the full(More)
structure. These signals typically occur in environments that contain interferers of exploitable structure. The goal This paper addresses the problem of direction finding for of this paper is to introduce a new algorithm, referred to unstructured emitters in environments that contain inter-as Copy-Aided Joint Maximum Likelihood (CA-JML), that ference(More)