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An investigation on an interference filtering technique for array diagnosis using sparsity

The aim of this contribution is to discuss an environmental filtering technique in array diagnosis. The basic idea is to distinguish the array contribution from the interference field using sparsity as discriminant by means of differential measurement technique. Basically, the field associated to the fault elements is separated by the field radiated by interference source using a mixed minimum ℓ1 norm and trace norm minimization. Numerical examples show the potential of the technique.