Array heads for estimating track misregistration
The authors examine the use of array heads for estimating the data and for providing servo information. A mathematical representation for array heads is developed, and a formula for the maximum likelihood estimate of the track misregistration is found. The case where the offtrack perturbation operat...
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| Veröffentlicht in: | IEEE transactions on magnetics 1993-11, Vol.29 (6), p.4033-4035 |
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| container_end_page | 4035 |
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| container_issue | 6 |
| container_start_page | 4033 |
| container_title | IEEE transactions on magnetics |
| container_volume | 29 |
| creator | Barbosa, L.C. MacDonald, C.E. Wolf, J.K. |
| description | The authors examine the use of array heads for estimating the data and for providing servo information. A mathematical representation for array heads is developed, and a formula for the maximum likelihood estimate of the track misregistration is found. The case where the offtrack perturbation operator is dependent on the offtrack error is considered. This case requires a joint minimization of two branches of quadratic forms. Simulation results for a specific head configuration are given which validate the estimate and agree with the theoretical convergence rates. The estimate converges quickly enough for practical purposes in a real storage system.< > |
| doi_str_mv | 10.1109/20.281380 |
| format | Article |
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A mathematical representation for array heads is developed, and a formula for the maximum likelihood estimate of the track misregistration is found. The case where the offtrack perturbation operator is dependent on the offtrack error is considered. This case requires a joint minimization of two branches of quadratic forms. Simulation results for a specific head configuration are given which validate the estimate and agree with the theoretical convergence rates. The estimate converges quickly enough for practical purposes in a real storage system.< ></description><subject>Applied sciences</subject><subject>Convergence</subject><subject>Electronics</subject><subject>Error analysis</subject><subject>Exact sciences and technology</subject><subject>Lifting equipment</subject><subject>Magnetic and optical mass memories</subject><subject>Magnetic heads</subject><subject>Magnetic recording</subject><subject>Maximum likelihood estimation</subject><subject>Nonlinear optics</subject><subject>Optical pulses</subject><subject>Servomechanisms</subject><subject>Storage and reproduction of information</subject><subject>Voltage</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1993</creationdate><recordtype>article</recordtype><recordid>eNo9kL1PwzAQxS0EEqUwsDJlQEgMKeePuPFYVXxJlVhgtmznXAxpUux06H-Pq1SdTk_3u6d3j5BbCjNKQT0xmLGa8hrOyIQqQUsAqc7JBIDWpRJSXJKrlH6yFBWFCYFFjGZffKNpUuH7WGAawsYMoVsXQzTut9iEFHEdUlZD6LtrcuFNm_DmOKfk6-X5c_lWrj5e35eLVek4yKFEbhoqleUNnVfeW2sr4EagQVSS8coZnKMDnDtZZ9AIWVHLGm8lQyYs41PyMPpuY_-3y6l0DuKwbU2H_S5pVleylvIAPo6gi33KUb3exvxB3GsK-tCJZqDHTjJ7fzQ1yZnWR9O5kE4HgkmpFM_Y3YgFRDxtjx7_2g9oyQ</recordid><startdate>19931101</startdate><enddate>19931101</enddate><creator>Barbosa, L.C.</creator><creator>MacDonald, C.E.</creator><creator>Wolf, J.K.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>19931101</creationdate><title>Array heads for estimating track misregistration</title><author>Barbosa, L.C. ; MacDonald, C.E. ; Wolf, J.K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c306t-e3ad169b3d175ffbbb503a4eaee96235cae7ec0e7c68d16a4651b2dfb62e24b23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1993</creationdate><topic>Applied sciences</topic><topic>Convergence</topic><topic>Electronics</topic><topic>Error analysis</topic><topic>Exact sciences and technology</topic><topic>Lifting equipment</topic><topic>Magnetic and optical mass memories</topic><topic>Magnetic heads</topic><topic>Magnetic recording</topic><topic>Maximum likelihood estimation</topic><topic>Nonlinear optics</topic><topic>Optical pulses</topic><topic>Servomechanisms</topic><topic>Storage and reproduction of information</topic><topic>Voltage</topic><toplevel>online_resources</toplevel><creatorcontrib>Barbosa, L.C.</creatorcontrib><creatorcontrib>MacDonald, C.E.</creatorcontrib><creatorcontrib>Wolf, J.K.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE transactions on magnetics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Barbosa, L.C.</au><au>MacDonald, C.E.</au><au>Wolf, J.K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Array heads for estimating track misregistration</atitle><jtitle>IEEE transactions on magnetics</jtitle><stitle>TMAG</stitle><date>1993-11-01</date><risdate>1993</risdate><volume>29</volume><issue>6</issue><spage>4033</spage><epage>4035</epage><pages>4033-4035</pages><issn>0018-9464</issn><eissn>1941-0069</eissn><coden>IEMGAQ</coden><abstract>The authors examine the use of array heads for estimating the data and for providing servo information. A mathematical representation for array heads is developed, and a formula for the maximum likelihood estimate of the track misregistration is found. The case where the offtrack perturbation operator is dependent on the offtrack error is considered. This case requires a joint minimization of two branches of quadratic forms. Simulation results for a specific head configuration are given which validate the estimate and agree with the theoretical convergence rates. The estimate converges quickly enough for practical purposes in a real storage system.< ></abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/20.281380</doi><tpages>3</tpages></addata></record> |
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| ispartof | IEEE transactions on magnetics, 1993-11, Vol.29 (6), p.4033-4035 |
| issn | 0018-9464 1941-0069 |
| language | eng |
| recordid | cdi_crossref_primary_10_1109_20_281380 |
| source | IEEE Electronic Library (IEL) |
| subjects | Applied sciences Convergence Electronics Error analysis Exact sciences and technology Lifting equipment Magnetic and optical mass memories Magnetic heads Magnetic recording Maximum likelihood estimation Nonlinear optics Optical pulses Servomechanisms Storage and reproduction of information Voltage |
| title | Array heads for estimating track misregistration |
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