{"title":"二维拉普拉斯变换数值反演的应用","authors":"Chao Zhang, Shaohai Hu, Yang Xiao, Xue-fen Wang","doi":"10.1109/ICOSP.2008.4697068","DOIUrl":null,"url":null,"abstract":"For the 2D continuous space-time (CST) systems are described by linear 2-D partial equations, generally, it is impossible to get the closed solutions of the CST systems. To get the space-time response of CST systems needs the inverse 2-D Laplace transform. However, the 2-D inverse Laplace transform (ILT) does not exist for unstable CST, a theorem is proposed to ensure the 2-D ILT to be obtained for stable CST systems. In this paper, we present the approach to get the solutions of CST systems, we also derive an algorithm of numerical 2-D ILT for the vector spatial-time response analysis of CST systems.","PeriodicalId":445699,"journal":{"name":"2008 9th International Conference on Signal Processing","volume":"7 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"The application of 2-D numerical inversion of Laplace transform\",\"authors\":\"Chao Zhang, Shaohai Hu, Yang Xiao, Xue-fen Wang\",\"doi\":\"10.1109/ICOSP.2008.4697068\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"For the 2D continuous space-time (CST) systems are described by linear 2-D partial equations, generally, it is impossible to get the closed solutions of the CST systems. To get the space-time response of CST systems needs the inverse 2-D Laplace transform. However, the 2-D inverse Laplace transform (ILT) does not exist for unstable CST, a theorem is proposed to ensure the 2-D ILT to be obtained for stable CST systems. In this paper, we present the approach to get the solutions of CST systems, we also derive an algorithm of numerical 2-D ILT for the vector spatial-time response analysis of CST systems.\",\"PeriodicalId\":445699,\"journal\":{\"name\":\"2008 9th International Conference on Signal Processing\",\"volume\":\"7 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-12-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2008 9th International Conference on Signal Processing\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICOSP.2008.4697068\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2008 9th International Conference on Signal Processing","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICOSP.2008.4697068","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The application of 2-D numerical inversion of Laplace transform
For the 2D continuous space-time (CST) systems are described by linear 2-D partial equations, generally, it is impossible to get the closed solutions of the CST systems. To get the space-time response of CST systems needs the inverse 2-D Laplace transform. However, the 2-D inverse Laplace transform (ILT) does not exist for unstable CST, a theorem is proposed to ensure the 2-D ILT to be obtained for stable CST systems. In this paper, we present the approach to get the solutions of CST systems, we also derive an algorithm of numerical 2-D ILT for the vector spatial-time response analysis of CST systems.