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In this paper we propose a novel genetic algorithm called immunity genetic algorithm (IGA) based on stochastic crossover evolution to solve the synthesis problem of thinned arrays. Our crossover operator is a variant of the known GA operator. A new expression of the array factor for a specific number of elements N is expressed as a linear discrete cosine transform (DCT). Using IGA to generate thousands...
Phased arrays offer possibilities of having multifunctional radar on a carrier such as an aircraft, etc. large uniform planar arrays require a large number of antennas and occupy a large area on the platform and is thus expensive in terms of hardware. Increasing the inter-element spacing to reduce the hardware requirement gives rise to grating lobes in the radiation pattern. Optimizing the inter-element...
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