{"created":"2023-05-15T12:35:17.366521+00:00","id":4132,"links":{},"metadata":{"_buckets":{"deposit":"e19c335c-e3d0-47cd-bf9a-767994f54132"},"_deposit":{"created_by":91,"id":"4132","owners":[91],"pid":{"revision_id":0,"type":"depid","value":"4132"},"status":"published"},"_oai":{"id":"oai:nitech.repo.nii.ac.jp:00004132","sets":["31"]},"author_link":["464","10746","12216","462","12218"],"item_10001_biblio_info_28":{"attribute_name":"bibliographic_information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1992-02-20","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"246","bibliographicPageStart":"240","bibliographicVolumeNumber":"E75-A","bibliographic_titles":[{"bibliographic_title":"IEICE transactions on fundamentals of electronics, communications and computer sciences","bibliographic_titleLang":"en"}]}]},"item_10001_description_36":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"This paper proposes a technique for designing two-dimensional (2-D) digital filters approximating an arbitrary magnitude function. The technique is based on 2-D spectral factorization and rational approximation of the complex exponential function. A 2-D spectral factorization technique is used to obtain a recursively computable and stable system with nonsymmetric half-plane support from the desired 2-D magnitude function. Since the obtained system has an exponential function type transfer function and cannot be realized directly in a rational form, a class of realizable 2-D digital filters is introduced to approximate the exponential type transfer function. This class of filters referred to as two-dimensional log magnitude approximation (2-D LMA) filters can be viewed as an extension of the class of 1-D LMA filters to the 2-D case. Filter coefficients are given by the 2-D complex cepstrum coefficients, i.e., the inverse Fourier transform of the logarithm of the given magnitude function, which can be efficiently computed using 2-D FFT algorithm. Consequently, computation of the filter coefficients is straightforward and efficient. A simple stability condition for the 2-D LMA filters is given. Under this condition, the stability of the designed filter is guaranteed. Parallel implementation of the 2-D LMA filters is also discussed. Several examples are presented to demonstrate the design capability.","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_10001_full_name_27":{"attribute_name":"著者別名","attribute_value_mlt":[{"familyNames":[{"familyName":"Tokuda","familyNameLang":"en"},{"familyName":"徳田","familyNameLang":"ja"},{"familyName":"トクダ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Keiichi","givenNameLang":"en"},{"givenName":"恵一","givenNameLang":"ja"},{"givenName":"ケイイチ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"464","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"1000020217483","nameIdentifierScheme":"NRID","nameIdentifierURI":"http://rns.nii.ac.jp/nr/1000020217483"}],"names":[{"name":"Tokuda, Keiichi","nameLang":"en"},{"name":"徳田, 恵一","nameLang":"ja"},{"name":"トクダ, ケイイチ","nameLang":"ja-Kana"}]}]},"item_10001_publisher_29":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Institute of Electronics, Information and Communication Engineers","subitem_publisher_language":"en"}]},"item_10001_source_id_30":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0916-8508","subitem_source_identifier_type":"ISSN"}]},"item_10001_source_id_32":{"attribute_name":"item_10001_source_id_32","attribute_value_mlt":[{"subitem_source_identifier":"AA10826239","subitem_source_identifier_type":"NCID"}]},"item_10001_version_type_33":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Kobayashi, Takao","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"10746","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Fukushi, Kazuyoshi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"12216","nameIdentifierScheme":"WEKO"}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Wu, Yi-Jian","creatorNameLang":"en"},{"creatorName":"Wu, Yi-Jian","creatorNameLang":"ja"}],"familyNames":[{"familyName":"Wu","familyNameLang":"en"},{"familyName":"Wu","familyNameLang":"ja"}],"givenNames":[{"givenName":"Yi-Jian","givenNameLang":"en"},{"givenName":"Yi-Jian","givenNameLang":"ja"}],"nameIdentifiers":[{"nameIdentifier":"462","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Imai, Satoshi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"12218","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-01-23"}],"displaytype":"detail","filename":"E75-A_240.pdf","filesize":[{"value":"520.9 kB"}],"format":"application/pdf","license_note":"Copyright (c) 1992 IEICE　http://search.ieice.org/index.html","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"本文_fulltext","url":"https://nitech.repo.nii.ac.jp/record/4132/files/E75-A_240.pdf"},"version_id":"a13e3a04-cff1-44fc-8bcc-183f07cccc8a"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"item_resource_type","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"2-D LMA Filters -Design of Stable Two-Dimensional Digital Filters with Arbitrary Magnitude Function-","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"2-D LMA Filters -Design of Stable Two-Dimensional Digital Filters with Arbitrary Magnitude Function-","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"91","path":["31"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2012-11-07"},"publish_date":"2012-11-07","publish_status":"0","recid":"4132","relation_version_is_last":true,"title":["2-D LMA Filters -Design of Stable Two-Dimensional Digital Filters with Arbitrary Magnitude Function-"],"weko_creator_id":"91","weko_shared_id":-1},"updated":"2025-03-13T04:12:26.346153+00:00"}