Numerical optimisation of compressive array feed networks

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dc.contributor.author Laue, Heinrich Edgar Arnold
dc.contributor.author Du Plessis, W.P. (Warren Paul)
dc.date.accessioned 2018-05-17T11:16:11Z
dc.date.available 2018-05-17T11:16:11Z
dc.date.issued 2018-07
dc.description.abstract Compressive 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_ZA
dc.description.department Electrical, Electronic and Computer Engineering en_ZA
dc.description.librarian hj2018 en_ZA
dc.description.sponsorship The National Research Foundation of South Africa (NRF) (Grant specific unique reference number (UID) 85845). en_ZA
dc.description.uri http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=8 en_ZA
dc.identifier.citation Laue, 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. en_ZA
dc.identifier.issn 0018-926X
dc.identifier.other 10.1109/TAP.2018.2829834
dc.identifier.uri http://hdl.handle.net/2263/64962
dc.language.iso en en_ZA
dc.publisher Institute of Electrical and Electronics Engineers en_ZA
dc.rights © 2018 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission. en_ZA
dc.subject Antenna arrays en_ZA
dc.subject Antenna feeds en_ZA
dc.subject Antenna pattern synthesis en_ZA
dc.subject Coherence en_ZA
dc.subject Compressive sensing (CS) en_ZA
dc.subject Phased arrays en_ZA
dc.subject Array signal processing en_ZA
dc.subject Sensors en_ZA
dc.subject Optimization en_ZA
dc.subject Array processing en_ZA
dc.subject Beamforming en_ZA
dc.subject Coherent light en_ZA
dc.subject Directional patterns (antenna) en_ZA
dc.title Numerical optimisation of compressive array feed networks en_ZA
dc.type Postprint Article en_ZA


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