Laue, Heinrich Edgar ArnoldDu Plessis, Warren Paul2018-05-172018-05-172018-07Laue, H.E.A. & Du Plessis, W.P. 2018, 'Numerical optimisation of compressive array feed networks', IEEE Transactions on Antennas and Propagation, vol. 66, no. 7, pp. 3432-3440.0018-926X10.1109/TAP.2018.2829834http://hdl.handle.net/2263/64962Compressive antenna arrays reduce the number of beamforming controls by taking a limited number of weighted combinations of the element signals. A compressive array sidelobe level (SLL)-minimisation algorithm, inspired by coherence-optimisation algorithms, is presented. Optimised compressive arrays are shown to obtain better SLLs than existing weighted thinned arrays and completely overlapped subarrays. The design of a compressive array with arbitrary sidelobe requirements shows that increasing the number of elements for a given number of beamforming controls improves array performance over a conventional array. A compressive array with a hard null is proposed to suppress interference before sampling. Where beamforming controls are the main cost drivers, the proposed approach promises to increase array performance without a significant increase in cost.en© 2018 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.Antenna arraysAntenna feedsAntenna pattern synthesisCoherenceCompressive sensing (CS)Phased arraysArray signal processingSensorsOptimizationArray processingBeamformingCoherent lightDirectional patterns (antenna)Postprint Article