{"620618":{"#nid":"620618","#data":{"type":"event","title":"Ph.D. Proposal Oral Exam - Anupama Govinda Raj","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp; \u003C\/strong\u003E\u003Cem\u003EGridless compressed sensing methods for super-resolution direction-of-arrival estimation\u003C\/em\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003ECommittee:\u0026nbsp; \u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EDr. McClellan, Advisor\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EDr. Lanterman, Chair\u003C\/p\u003E\r\n\r\n\u003Cp\u003EDr. Davenport\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EAbstract: \u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EThe objective of the proposed research is to develop\u0026nbsp;gridless\u0026nbsp;super-resolution direction-of-arrival estimation methods for arbitrary array geometries by exploiting sparsity in the continuous angle domain to eliminate the\u0026nbsp;offgrid\u0026nbsp;problem associated with grid-based compressed sensing methods. Making use of the periodicity of the array manifold, the dual function for the infinite-dimensional primal atomic norm minimization problem is represented as a trigonometric polynomial via truncated Fourier series. The dual problem is then converted to a finite semidefinite program, and the source directions are recovered through polynomial rooting. The proposed approach is used to design search-free\u0026nbsp;gridlessmethods applicable for coherent sources, limited snapshots, one-bit sensor measurements, and wideband sources. The performance of the method is evaluated by computer simulations for various array geometries and parameters.\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Gridless compressed sensing methods for super-resolution direction-of-arrival estimation"}],"uid":"28475","created_gmt":"2019-04-18 16:15:02","changed_gmt":"2019-04-18 19:27:00","author":"Daniela Staiculescu","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2019-04-22T13:15:00-04:00","event_time_end":"2019-04-22T15:15:00-04:00","event_time_end_last":"2019-04-22T15:15:00-04:00","gmt_time_start":"2019-04-22 17:15:00","gmt_time_end":"2019-04-22 19:15:00","gmt_time_end_last":"2019-04-22 19:15:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"434371","name":"ECE Ph.D. Proposal Oral Exams"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"},{"id":"1808","name":"graduate students"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}