{"title":"非平稳噪声中迟电位与信噪比的提高","authors":"R. Atarius, L. Sornmo","doi":"10.1109/IEMBS.1995.579258","DOIUrl":null,"url":null,"abstract":"An \"instantaneous\" optimal filter is presented for improvement of the signal-to-noise ratio in averaged ECGs. The filter is designed for the case when the noise level varies from beat to beat. Simulation results indicate that a better performance is achieved by the new filter when compared to a similar filter designed for processing of beats with identical noise levels. An example is presented in which the filter is applied to the detection of cardiac late potentials.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Late potentials and the improvement of signal-to-noise ratio in nonstationary noise\",\"authors\":\"R. Atarius, L. Sornmo\",\"doi\":\"10.1109/IEMBS.1995.579258\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An \\\"instantaneous\\\" optimal filter is presented for improvement of the signal-to-noise ratio in averaged ECGs. The filter is designed for the case when the noise level varies from beat to beat. Simulation results indicate that a better performance is achieved by the new filter when compared to a similar filter designed for processing of beats with identical noise levels. An example is presented in which the filter is applied to the detection of cardiac late potentials.\",\"PeriodicalId\":20509,\"journal\":{\"name\":\"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1995-09-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IEMBS.1995.579258\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IEMBS.1995.579258","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Late potentials and the improvement of signal-to-noise ratio in nonstationary noise
An "instantaneous" optimal filter is presented for improvement of the signal-to-noise ratio in averaged ECGs. The filter is designed for the case when the noise level varies from beat to beat. Simulation results indicate that a better performance is achieved by the new filter when compared to a similar filter designed for processing of beats with identical noise levels. An example is presented in which the filter is applied to the detection of cardiac late potentials.
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