Adaptive re-weighting homotopy for sparse beamforming

Fernando Goncalves De Almeida Neto, V. Nascimento, Yury Zakharov, Rodrigo Caiado De Lamare

Research output: Contribution to conferencePaperpeer-review

Abstract

In this paper, a complex adaptive re-weighting algorithm based on the homotopy technique is developed and used for beamforming. A multi-candidate scheme is also proposed and incorporated into the adaptive re-weighting homotopy algorithm to choose the regularization factor and improve the signal-to-interference plus noise (SINR) performance. The proposed algorithm is used to minimize the degradation caused by sparsity in arrays with faulty sensors, or when the required degrees of freedom to suppress interference is significantly less than the number of sensors. Simulations illustrate the algorithm's performance.
Original languageEnglish
Pages1287-1291
Number of pages5
Publication statusPublished - Sept 2014
EventSignal Processing Conference (EUSIPCO) - Lisbon, Portugal
Duration: 1 Sept 20145 Sept 2014

Conference

ConferenceSignal Processing Conference (EUSIPCO)
Country/TerritoryPortugal
CityLisbon
Period1/09/145/09/14

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