{"title":"改进幅度多步单向建模","authors":"D. Kiyashchenko, R. Plessix, B. Kashtan","doi":"10.3997/2214-4609-pdb.3.p312","DOIUrl":null,"url":null,"abstract":"P312 IMPROVED AMPLITUDE MULTI-STEP ONE- WAY MODELLING Abstract 1 A modelling method based on the application of one-way technique is presented. In order to obtain a correct amplitude behaviour using the perturbation theory the error due to the factorisation of the two-way wave operator by the downgoing and upgoing one-way wave equation is taken into account as a source term in an additional set of one-way equations. This multi-step one-way approach improves the amplitudes when the models vary vertically and horizontally. Several examples with smooth and rough contrasts are shown and compared with the results of the two-way wave equation","PeriodicalId":110744,"journal":{"name":"66th EAGE Conference & Exhibition","volume":"17 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2004-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Improved Amplitude Multi-Step One-Way Modelling\",\"authors\":\"D. Kiyashchenko, R. Plessix, B. Kashtan\",\"doi\":\"10.3997/2214-4609-pdb.3.p312\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"P312 IMPROVED AMPLITUDE MULTI-STEP ONE- WAY MODELLING Abstract 1 A modelling method based on the application of one-way technique is presented. In order to obtain a correct amplitude behaviour using the perturbation theory the error due to the factorisation of the two-way wave operator by the downgoing and upgoing one-way wave equation is taken into account as a source term in an additional set of one-way equations. This multi-step one-way approach improves the amplitudes when the models vary vertically and horizontally. Several examples with smooth and rough contrasts are shown and compared with the results of the two-way wave equation\",\"PeriodicalId\":110744,\"journal\":{\"name\":\"66th EAGE Conference & Exhibition\",\"volume\":\"17 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2004-06-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"66th EAGE Conference & Exhibition\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3997/2214-4609-pdb.3.p312\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"66th EAGE Conference & Exhibition","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3997/2214-4609-pdb.3.p312","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
P312 IMPROVED AMPLITUDE MULTI-STEP ONE- WAY MODELLING Abstract 1 A modelling method based on the application of one-way technique is presented. In order to obtain a correct amplitude behaviour using the perturbation theory the error due to the factorisation of the two-way wave operator by the downgoing and upgoing one-way wave equation is taken into account as a source term in an additional set of one-way equations. This multi-step one-way approach improves the amplitudes when the models vary vertically and horizontally. Several examples with smooth and rough contrasts are shown and compared with the results of the two-way wave equation
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