{"created":"2023-03-31T02:44:05.248799+00:00","id":5845,"links":{},"metadata":{"_buckets":{"deposit":"dcc54e08-425d-430d-b262-0de4d94089f0"},"_deposit":{"id":"5845","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"5845"},"status":"published"},"_oai":{"id":"oai:nied-repo.bosai.go.jp:00005845","sets":[]},"author_link":[],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1984","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"293","bibliographicPageStart":"281","bibliographicVolumeNumber":"37","bibliographic_titles":[{"bibliographic_title":"地震 第２輯","bibliographic_titleLang":"ja"},{"bibliographic_title":"地震 2","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Although several techniques have been proposed for a computer-based automatic detection of P and S onset times of small earthquakes, some seismologists have been felt hesitation in using such onset time data on a routine basis. This is mainly due to a lack of parameters judging precision of detected onset times. This paper aimed to introduce a new mathematical aspect for the confidence interval of onset time estimate and to apply the practical tests.<br>After the autoregressive model parameters have been estimated at two windows immediately preceding and behind P or S onset of an earthquake, the likelihood functions for the two models are defined by assuming normality of probability density function of residual time series. The log-likelihood function of the joint model, which is introduced by using of the above mentioned likelihood functions, gave a basis for onset time picking and statistical inference of a confidence interval time. P and S onset times and their 90% confidence interval were automatically estimated for more than one hundred seismograms of microearthquakes. The result made good comparisons with the manual pickings by several persons. When the signal-to-noise ratio is about 10dB, the 90% confidence interval times are estimated to be 0.2 and 0.8seconds for P and S onsets, respectively.","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"公益社団法人 日本地震学会","subitem_publisher_language":"ja"},{"subitem_publisher":"SEISMOLOGICAL SOCIETY OF JAPAN","subitem_publisher_language":"en"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.4294/zisin1948.37.2_281"}}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1883-9029","subitem_source_identifier_type":"EISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"森田 裕一","creatorNameLang":"ja"},{"creatorName":"MORITA Yuichi","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"浜口 博之","creatorNameLang":"ja"},{"creatorName":"HAMAGUCHI Hiroyuki","creatorNameLang":"en"}]}]},"item_title":"自己回帰過程による地震波初動の自動検測とその信頼区間","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"自己回帰過程による地震波初動の自動検測とその信頼区間","subitem_title_language":"ja"},{"subitem_title":"自己回帰過程による地震波初動の自動検測とその信頼区間","subitem_title_language":"en"}]},"item_type_id":"40001","owner":"1","path":["1670839190650"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2023-03-30"},"publish_date":"2023-03-30","publish_status":"0","recid":"5845","relation_version_is_last":true,"title":["自己回帰過程による地震波初動の自動検測とその信頼区間"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-08T09:31:23.222706+00:00"}