A class of diagonally loaded robust Capon beamformers for noncircular signals of interest
Diagonal loading is a simple and effective method for robustness enhancement of the Capon beamformer against perturbation in the presumed steering vector of the signal-of-interest (SOI). However, the determination of an appropriate diagonal loading level is not a trivial task. Three noncircularity r...
Gespeichert in:
| Veröffentlicht in: | Signal processing 2014-01, Vol.94, p.670-680 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 680 |
|---|---|
| container_issue | |
| container_start_page | 670 |
| container_title | Signal processing |
| container_volume | 94 |
| creator | Xu, Yougen Ma, Jingyan Liu, Zhiwen Liu, Wei |
| description | Diagonal loading is a simple and effective method for robustness enhancement of the Capon beamformer against perturbation in the presumed steering vector of the signal-of-interest (SOI). However, the determination of an appropriate diagonal loading level is not a trivial task. Three noncircularity restoral based methods are herein proposed for selecting the diagonal loading level to recover a noncircular SOI buried in circular and/or noncircular interferences plus circular background noise. Monte Carlo simulations are performed to verify the efficacy of the proposed methods.
•Three schemes for determining the diagonal loading level of the diagonally loaded robust Capon beamformer are proposed.•The schemes are based on the exploitation of the noncircularity property of the signal of interest.•The schemes require no knowledge of or assumption on the uncertainty of the steering vector.•The schemes involve no user-defined parameters. |
| doi_str_mv | 10.1016/j.sigpro.2013.07.013 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1530993031</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0165168413002922</els_id><sourcerecordid>1530993031</sourcerecordid><originalsourceid>FETCH-LOGICAL-c435t-d9b111a506a0b8951b3fb6e35caead916297443bb33aeec2d58c6538f064052c3</originalsourceid><addsrcrecordid>eNp9kE9LxDAQxYMouK5-Aw-5CF5ak6Zp2ouwLP6DBS968BSm6XTJ0jZr0gp-e7N28ejpwfB782YeIdecpZzx4m6XBrvde5dmjIuUqTTKCVnwUmWJklKdkkXEZMKLMj8nFyHsGItIwRbkY0VNByFQ19LGwtYN0HXftHPQYEO9q6cw0jXs3UBrhL51vkcfaFQ6uMFYb6YOPI350fi7xQ4jegzjJTlr4wivjrok748Pb-vnZPP69LJebRKTCzkmTVVzzkGyAlhdVpLXoq0LFNIAQlPxIqtUnou6FgIQTdbI0hRSlC0rciYzI5bkdt4bC_icYrDubTDYdTCgm4LmUrCqEkzwiOYzarwLwWOr99724L81Z_rQpN7puUl9aFIzpaNE280xAYKBrvUQHw9_3kxVTOXxpiW5nzmM735Z9DoYi4PBxno0o26c_T_oB9orjA4</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1530993031</pqid></control><display><type>article</type><title>A class of diagonally loaded robust Capon beamformers for noncircular signals of interest</title><source>Access via ScienceDirect (Elsevier)</source><creator>Xu, Yougen ; Ma, Jingyan ; Liu, Zhiwen ; Liu, Wei</creator><creatorcontrib>Xu, Yougen ; Ma, Jingyan ; Liu, Zhiwen ; Liu, Wei</creatorcontrib><description>Diagonal loading is a simple and effective method for robustness enhancement of the Capon beamformer against perturbation in the presumed steering vector of the signal-of-interest (SOI). However, the determination of an appropriate diagonal loading level is not a trivial task. Three noncircularity restoral based methods are herein proposed for selecting the diagonal loading level to recover a noncircular SOI buried in circular and/or noncircular interferences plus circular background noise. Monte Carlo simulations are performed to verify the efficacy of the proposed methods.
•Three schemes for determining the diagonal loading level of the diagonally loaded robust Capon beamformer are proposed.•The schemes are based on the exploitation of the noncircularity property of the signal of interest.•The schemes require no knowledge of or assumption on the uncertainty of the steering vector.•The schemes involve no user-defined parameters.</description><identifier>ISSN: 0165-1684</identifier><identifier>EISSN: 1872-7557</identifier><identifier>DOI: 10.1016/j.sigpro.2013.07.013</identifier><identifier>CODEN: SPRODR</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Applied sciences ; Capon beamformer ; Computer simulation ; Detection, estimation, filtering, equalization, prediction ; Diagonal loading ; Effectiveness ; Exact sciences and technology ; Information, signal and communications theory ; Mathematical analysis ; Monte Carlo methods ; Noncircularity ; Robust adaptive beamforming ; Robustness ; Signal and communications theory ; Signal, noise ; Steering ; Steering vector error ; Tasks ; Telecommunications and information theory ; Vectors (mathematics)</subject><ispartof>Signal processing, 2014-01, Vol.94, p.670-680</ispartof><rights>2013 Elsevier B.V.</rights><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c435t-d9b111a506a0b8951b3fb6e35caead916297443bb33aeec2d58c6538f064052c3</citedby><cites>FETCH-LOGICAL-c435t-d9b111a506a0b8951b3fb6e35caead916297443bb33aeec2d58c6538f064052c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.sigpro.2013.07.013$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,4024,27923,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27907465$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Xu, Yougen</creatorcontrib><creatorcontrib>Ma, Jingyan</creatorcontrib><creatorcontrib>Liu, Zhiwen</creatorcontrib><creatorcontrib>Liu, Wei</creatorcontrib><title>A class of diagonally loaded robust Capon beamformers for noncircular signals of interest</title><title>Signal processing</title><description>Diagonal loading is a simple and effective method for robustness enhancement of the Capon beamformer against perturbation in the presumed steering vector of the signal-of-interest (SOI). However, the determination of an appropriate diagonal loading level is not a trivial task. Three noncircularity restoral based methods are herein proposed for selecting the diagonal loading level to recover a noncircular SOI buried in circular and/or noncircular interferences plus circular background noise. Monte Carlo simulations are performed to verify the efficacy of the proposed methods.
•Three schemes for determining the diagonal loading level of the diagonally loaded robust Capon beamformer are proposed.•The schemes are based on the exploitation of the noncircularity property of the signal of interest.•The schemes require no knowledge of or assumption on the uncertainty of the steering vector.•The schemes involve no user-defined parameters.</description><subject>Applied sciences</subject><subject>Capon beamformer</subject><subject>Computer simulation</subject><subject>Detection, estimation, filtering, equalization, prediction</subject><subject>Diagonal loading</subject><subject>Effectiveness</subject><subject>Exact sciences and technology</subject><subject>Information, signal and communications theory</subject><subject>Mathematical analysis</subject><subject>Monte Carlo methods</subject><subject>Noncircularity</subject><subject>Robust adaptive beamforming</subject><subject>Robustness</subject><subject>Signal and communications theory</subject><subject>Signal, noise</subject><subject>Steering</subject><subject>Steering vector error</subject><subject>Tasks</subject><subject>Telecommunications and information theory</subject><subject>Vectors (mathematics)</subject><issn>0165-1684</issn><issn>1872-7557</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNp9kE9LxDAQxYMouK5-Aw-5CF5ak6Zp2ouwLP6DBS968BSm6XTJ0jZr0gp-e7N28ejpwfB782YeIdecpZzx4m6XBrvde5dmjIuUqTTKCVnwUmWJklKdkkXEZMKLMj8nFyHsGItIwRbkY0VNByFQ19LGwtYN0HXftHPQYEO9q6cw0jXs3UBrhL51vkcfaFQ6uMFYb6YOPI350fi7xQ4jegzjJTlr4wivjrok748Pb-vnZPP69LJebRKTCzkmTVVzzkGyAlhdVpLXoq0LFNIAQlPxIqtUnou6FgIQTdbI0hRSlC0rciYzI5bkdt4bC_icYrDubTDYdTCgm4LmUrCqEkzwiOYzarwLwWOr99724L81Z_rQpN7puUl9aFIzpaNE280xAYKBrvUQHw9_3kxVTOXxpiW5nzmM735Z9DoYi4PBxno0o26c_T_oB9orjA4</recordid><startdate>201401</startdate><enddate>201401</enddate><creator>Xu, Yougen</creator><creator>Ma, Jingyan</creator><creator>Liu, Zhiwen</creator><creator>Liu, Wei</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>7SP</scope><scope>8FD</scope><scope>JQ2</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>201401</creationdate><title>A class of diagonally loaded robust Capon beamformers for noncircular signals of interest</title><author>Xu, Yougen ; Ma, Jingyan ; Liu, Zhiwen ; Liu, Wei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c435t-d9b111a506a0b8951b3fb6e35caead916297443bb33aeec2d58c6538f064052c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Applied sciences</topic><topic>Capon beamformer</topic><topic>Computer simulation</topic><topic>Detection, estimation, filtering, equalization, prediction</topic><topic>Diagonal loading</topic><topic>Effectiveness</topic><topic>Exact sciences and technology</topic><topic>Information, signal and communications theory</topic><topic>Mathematical analysis</topic><topic>Monte Carlo methods</topic><topic>Noncircularity</topic><topic>Robust adaptive beamforming</topic><topic>Robustness</topic><topic>Signal and communications theory</topic><topic>Signal, noise</topic><topic>Steering</topic><topic>Steering vector error</topic><topic>Tasks</topic><topic>Telecommunications and information theory</topic><topic>Vectors (mathematics)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xu, Yougen</creatorcontrib><creatorcontrib>Ma, Jingyan</creatorcontrib><creatorcontrib>Liu, Zhiwen</creatorcontrib><creatorcontrib>Liu, Wei</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>Signal processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Xu, Yougen</au><au>Ma, Jingyan</au><au>Liu, Zhiwen</au><au>Liu, Wei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A class of diagonally loaded robust Capon beamformers for noncircular signals of interest</atitle><jtitle>Signal processing</jtitle><date>2014-01</date><risdate>2014</risdate><volume>94</volume><spage>670</spage><epage>680</epage><pages>670-680</pages><issn>0165-1684</issn><eissn>1872-7557</eissn><coden>SPRODR</coden><abstract>Diagonal loading is a simple and effective method for robustness enhancement of the Capon beamformer against perturbation in the presumed steering vector of the signal-of-interest (SOI). However, the determination of an appropriate diagonal loading level is not a trivial task. Three noncircularity restoral based methods are herein proposed for selecting the diagonal loading level to recover a noncircular SOI buried in circular and/or noncircular interferences plus circular background noise. Monte Carlo simulations are performed to verify the efficacy of the proposed methods.
•Three schemes for determining the diagonal loading level of the diagonally loaded robust Capon beamformer are proposed.•The schemes are based on the exploitation of the noncircularity property of the signal of interest.•The schemes require no knowledge of or assumption on the uncertainty of the steering vector.•The schemes involve no user-defined parameters.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.sigpro.2013.07.013</doi><tpages>11</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0165-1684 |
| ispartof | Signal processing, 2014-01, Vol.94, p.670-680 |
| issn | 0165-1684 1872-7557 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1530993031 |
| source | Access via ScienceDirect (Elsevier) |
| subjects | Applied sciences Capon beamformer Computer simulation Detection, estimation, filtering, equalization, prediction Diagonal loading Effectiveness Exact sciences and technology Information, signal and communications theory Mathematical analysis Monte Carlo methods Noncircularity Robust adaptive beamforming Robustness Signal and communications theory Signal, noise Steering Steering vector error Tasks Telecommunications and information theory Vectors (mathematics) |
| title | A class of diagonally loaded robust Capon beamformers for noncircular signals of interest |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-01T15%3A56%3A49IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=A%20class%20of%20diagonally%20loaded%20robust%20Capon%20beamformers%20for%20noncircular%20signals%20of%20interest&rft.jtitle=Signal%20processing&rft.au=Xu,%20Yougen&rft.date=2014-01&rft.volume=94&rft.spage=670&rft.epage=680&rft.pages=670-680&rft.issn=0165-1684&rft.eissn=1872-7557&rft.coden=SPRODR&rft_id=info:doi/10.1016/j.sigpro.2013.07.013&rft_dat=%3Cproquest_cross%3E1530993031%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1530993031&rft_id=info:pmid/&rft_els_id=S0165168413002922&rfr_iscdi=true |