{"title":"超宽带系统时域有限差分中交替方向隐式格式引入的数值噪声","authors":"A. Thiry, F. Costen, A. Brown","doi":"10.1142/S0219799506000430","DOIUrl":null,"url":null,"abstract":"The numerical noise for spherical wave Ultra WideBand (UWB) signals originating from the Alternating Direction-Implicit (ADI) Finite Difference Time Domain (FDTD) scheme is quantified. A practical assessment is then provided to evaluate the numerical noise of the ADI-FDTD method relative to the FDTD method. The study reveals the influence of the temporal and spatial discretisation in conjunction with the maximum frequency of the excitation on the numerical noise. The result can be used for the determination of the temporal discretisation for the acceptable numerical noise increase compared with FDTD prior to running any simulation.","PeriodicalId":185917,"journal":{"name":"Int. J. Wirel. Opt. Commun.","volume":"1994 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Numerical Noise Introduced by the Alternating Direction-Implicit Scheme in FDTD for UWB Systems\",\"authors\":\"A. Thiry, F. Costen, A. Brown\",\"doi\":\"10.1142/S0219799506000430\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The numerical noise for spherical wave Ultra WideBand (UWB) signals originating from the Alternating Direction-Implicit (ADI) Finite Difference Time Domain (FDTD) scheme is quantified. A practical assessment is then provided to evaluate the numerical noise of the ADI-FDTD method relative to the FDTD method. The study reveals the influence of the temporal and spatial discretisation in conjunction with the maximum frequency of the excitation on the numerical noise. The result can be used for the determination of the temporal discretisation for the acceptable numerical noise increase compared with FDTD prior to running any simulation.\",\"PeriodicalId\":185917,\"journal\":{\"name\":\"Int. J. Wirel. Opt. Commun.\",\"volume\":\"1994 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2006-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Int. J. Wirel. Opt. Commun.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1142/S0219799506000430\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Int. J. Wirel. Opt. Commun.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1142/S0219799506000430","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Numerical Noise Introduced by the Alternating Direction-Implicit Scheme in FDTD for UWB Systems
The numerical noise for spherical wave Ultra WideBand (UWB) signals originating from the Alternating Direction-Implicit (ADI) Finite Difference Time Domain (FDTD) scheme is quantified. A practical assessment is then provided to evaluate the numerical noise of the ADI-FDTD method relative to the FDTD method. The study reveals the influence of the temporal and spatial discretisation in conjunction with the maximum frequency of the excitation on the numerical noise. The result can be used for the determination of the temporal discretisation for the acceptable numerical noise increase compared with FDTD prior to running any simulation.
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