Publications Scientifiques
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Item Capacity optimization of MIMO wireless communication systems using a hybrid Genetic-Taguchi algorithm(Springer, 2013) Recioui, Abdelmadjid; Bentarzi, HamidItem Null steering of Dolph-Chebychev arrays using taguchi method(2013) Recioui, Abdelmadjid; Bentarzi, HamidDolph-Chebychev arrays are known to exhibit the best compromise between sidelobe level and directivity. However, they place a constraint on the null locations. Any attempt to impose nulls or get them deeper will impact the directivity/sidelobe level trade-off. In this work, null placement in Dolph-Chebychev arrays through element position perturbation is carried out based on Taguchi method while preserving the array aperture. Several examples are considered for single, double, multiple and broad null placement to demonstrate the ability of the Taguchi method to explore the search space and reach the global optimumItem Design of an IIR digital filter for phasor measurement improvement based on a hybrid optimization algorithm(IEEE, 2013) Recioui, Abdelmadjid; Ouadi, A.; Bentarzi, HamidItem Pattern nulling of linear array antennas with mutual coupling effects using taguchi method(IEEE, 2012) Recioui, Abdelmadjid; Bentarzi, HamidThe purpose of the present work is to employ the Taguchi's optimization technique, which is a relatively new optimization technique, for null steering in the antenna radiation pattern by controlling only the element positions of a nonuniform linear array for a specified beamwidth and minimum achievable sidelobe level. As a practical part, an array of parallel dipoles is designed to account for the mutual coupling effects on the performance of the array in terms of directivity, sidelobe level and null placement. Illustrative examples are considered to impose single or multiple nulls in the antenna pattern at specific interference directions with the maximum side lobe level reduction of array antenna design