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In this paper a correction procedure is introduced based on Particle Swarm Optimization (PSO) which maintains the nulling performance of the failed antenna array. Considering the faulty elements as nonradiating elements, PSO reoptimizes the weights of the remaining radiating elements to reshape the pattern. Simulation results for a Chebyshev array with imposed single, multiple, and broad nulls with failed antenna array are presented.<\/jats:p>","DOI":"10.1155\/2011\/692197","type":"journal-article","created":{"date-parts":[[2011,7,14]],"date-time":"2011-07-14T21:40:57Z","timestamp":1310679657000},"update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Null Steering in Failed Antenna Arrays"],"prefix":"10.1155","volume":"2011","author":[{"given":"Om Prakash","family":"Acharya","sequence":"first","affiliation":[]},{"given":"Amalendu","family":"Patnaik","sequence":"additional","affiliation":[]},{"given":"Sachendra N.","family":"Sinha","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2011,7,14]]},"reference":[{"key":"e_1_2_7_1_2","volume-title":"Antenna Theory Analysis and Design","author":"Balanis C. 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