{"created":"2025-01-19T00:26:01.654339+00:00","updated":"2025-01-20T15:57:52.293301+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00151382","sets":["8512:8657:8658:8547:8548"]},"path":["8548"],"owner":"1","recid":"151382","title":["RC-005 ポリフェーズ・フィルタ・バンクを用いた基数2^kFFTに関して電波望遠鏡用分光器への適用 : 電波望遠鏡用分光器への適用(船井ベストペーパー賞受賞論文,リコンフィギャラブルシステムと応用,C分野:ハードウェア・アーキテクチャ)"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-09-04"},"_buckets":{"deposit":"074e31ae-63a6-4259-95a9-c89357676893"},"_deposit":{"id":"151382","pid":{"type":"depid","value":"151382","revision_id":0},"owners":[1],"status":"published","created_by":1},"item_title":"RC-005 ポリフェーズ・フィルタ・バンクを用いた基数2^kFFTに関して電波望遠鏡用分光器への適用 : 電波望遠鏡用分光器への適用(船井ベストペーパー賞受賞論文,リコンフィギャラブルシステムと応用,C分野:ハードウェア・アーキテクチャ)","author_link":["259303","259304","259301","259300","259302","259305"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"RC-005 ポリフェーズ・フィルタ・バンクを用いた基数2^kFFTに関して電波望遠鏡用分光器への適用 : 電波望遠鏡用分光器への適用(船井ベストペーパー賞受賞論文,リコンフィギャラブルシステムと応用,C分野:ハードウェア・アーキテクチャ)"},{"subitem_title":"RC-005 On a Radix 2^kFFT Using a Polyphase Filter Bank : Application to a Spectrometer for a Radio Telescope","subitem_title_language":"en"}]},"item_type_id":"26","publish_date":"2012-09-04","item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_26_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"鹿児島大学大学院理工学研究科電気電子工学専攻"},{"subitem_text_value":"鹿児島大学大学院理工学研究科物理宇宙専攻"},{"subitem_text_value":"九州工業大学大学院情報工学研究科情報創成工学専攻"}]},"item_26_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Faculty of Engineering, Kagoshima University","subitem_text_language":"en"},{"subitem_text_value":"Faculty of Science, Kagoshima University","subitem_text_language":"en"},{"subitem_text_value":"Department of Computer Science and Electronics, Kyushu Institute of Technology","subitem_text_language":"en"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/151382/files/KJ00008742308.pdf"},"date":[{"dateType":"Available","dateValue":"2012-09-04"}],"format":"application/pdf","filename":"KJ00008742308.pdf","filesize":[{"value":"598.4 kB"}],"mimetype":"application/pdf","accessrole":"open_date","version_id":"6a5cec5a-7b51-4a73-bfba-ec6f112dbdf4","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2012 by IEICE,IPSJ"}]},"item_26_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"中原, 啓貴"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"中西, 裕之"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"笹尾, 勤"}],"nameIdentifiers":[{}]}]},"item_26_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"NAKAHARA, Hiroki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"NAKANISHI, Hiroyuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"SASAO, Tsutomu","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_5794","resourcetype":"conference paper"}]},"item_26_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA1242354X","subitem_source_identifier_type":"NCID"}]},"item_26_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"電波望遠鏡における分光器(spectrometer)は宇宙から受信した電波をスペクトルに変換する重要な箇所であり,広帯域かつ高速なフーリエ変換が必要とされている.本論文ではポリフェーズ・フィルタ・バンクを用いた基数2^kFFT回路について述べる.既存の基数2^2FFT回路の解析を行い,メモリが実装のボトルネックになることを示す.提案回路は,ポリフェーズ・フィルタ・バンクを用いて荒い帯域分割を行った後,基数2^kFFT回路を用いてスペクトルに変換する.4並列化した提案回路をAltera社FPGAボードに実装し,サンプル点2^<27>のFFTを0.048秒で行えることを示す.提案回路は,サンプル点2^<27>FFTに関して,SETI spectrometerよりも20.81倍高速であった.","subitem_description_type":"Other"}]},"item_26_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"In radio telescope, the spectrometer analyzes the radio frequency (RF) received from celestial objects at the frequency domain by performing the fast Fourier transform (FFT). The FFT can be realized by the radix 2^k FFT (R2^kFFT). In Radio Astronomy, the number of points for the FFT is larger than that for the general purpose one. Thus, the size of memory using a conventional method is too large to implement. We use the polyphase filter bank to reduce the size of the R2^kFFT. We implemented the 2^<27> point FFT by the R2^kFFT with the polyphase filter bank. Compared with the SETI spectrometer for 2^<27>-FFT, the four parallelized proposed ones for 2^<27>-FFT is 20.81 times faster.","subitem_description_type":"Other"}]},"item_26_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"56","bibliographic_titles":[{"bibliographic_title":"情報科学技術フォーラム講演論文集"}],"bibliographicPageStart":"49","bibliographicIssueDates":{"bibliographicIssueDate":"2012-09-04","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicVolumeNumber":"11"}]},"relation_version_is_last":true,"weko_creator_id":"1"},"id":151382,"links":{}}