{"title":"基于时域有限差分的两种新型超宽带室内传播模型","authors":"Yan Zhao, Y. Hao, C. Parini","doi":"10.1109/ICU.2005.1569970","DOIUrl":null,"url":null,"abstract":"This paper presents two novel finite-difference time-domain (FDTD) based methods for UWB propagation modelling. For the dispersive FDTD model, Debye material is considered and the frequency dependent material information is discretely converted into time domain by using differential equation-based algorithm; for the sub-band FDTD model, the whole ultra wideband (3.1-10.6 GHz) is divided into 11 subbands with 700 MHz bandwidth and each sub-band is simulated separately using measured frequency-dependent material properties. Both the dispersive FDTD and the sub-band FDTD methods are verified by comparing reflection coefficients obtained from one-dimensional (1-D) simulation and analytical equations. The results from two-dimensional (2-D) dispersive FDTD, subband FDTD and UWB ray tracing simulations are obtained and discussed.","PeriodicalId":105819,"journal":{"name":"2005 IEEE International Conference on Ultra-Wideband","volume":"40 2","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2005-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"17","resultStr":"{\"title\":\"Two novel FDTD based UWB indoor propagation models\",\"authors\":\"Yan Zhao, Y. Hao, C. Parini\",\"doi\":\"10.1109/ICU.2005.1569970\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents two novel finite-difference time-domain (FDTD) based methods for UWB propagation modelling. For the dispersive FDTD model, Debye material is considered and the frequency dependent material information is discretely converted into time domain by using differential equation-based algorithm; for the sub-band FDTD model, the whole ultra wideband (3.1-10.6 GHz) is divided into 11 subbands with 700 MHz bandwidth and each sub-band is simulated separately using measured frequency-dependent material properties. Both the dispersive FDTD and the sub-band FDTD methods are verified by comparing reflection coefficients obtained from one-dimensional (1-D) simulation and analytical equations. The results from two-dimensional (2-D) dispersive FDTD, subband FDTD and UWB ray tracing simulations are obtained and discussed.\",\"PeriodicalId\":105819,\"journal\":{\"name\":\"2005 IEEE International Conference on Ultra-Wideband\",\"volume\":\"40 2\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2005-09-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"17\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2005 IEEE International Conference on Ultra-Wideband\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICU.2005.1569970\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2005 IEEE International Conference on Ultra-Wideband","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICU.2005.1569970","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Two novel FDTD based UWB indoor propagation models
This paper presents two novel finite-difference time-domain (FDTD) based methods for UWB propagation modelling. For the dispersive FDTD model, Debye material is considered and the frequency dependent material information is discretely converted into time domain by using differential equation-based algorithm; for the sub-band FDTD model, the whole ultra wideband (3.1-10.6 GHz) is divided into 11 subbands with 700 MHz bandwidth and each sub-band is simulated separately using measured frequency-dependent material properties. Both the dispersive FDTD and the sub-band FDTD methods are verified by comparing reflection coefficients obtained from one-dimensional (1-D) simulation and analytical equations. The results from two-dimensional (2-D) dispersive FDTD, subband FDTD and UWB ray tracing simulations are obtained and discussed.
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