{"title":"快速求解电磁散射问题的MLNG场评价算子的直接反演","authors":"E. Chernokozhin, A. Boag","doi":"10.23919/AT-AP-RASC54737.2022.9814295","DOIUrl":null,"url":null,"abstract":"A method for direct inversion of the EFIE operator is proposed. The method is based on the Multilevel Nonuniform Grid (MLNG) approach, which previously has been successfully used in fast iterative solvers. However, the MLNG approach is also suitable for direct solvers. The efficiency of the method stems from the fact that the direct inversion of MLNG-compressed integral operators reduces to the inversion of banded matrices.","PeriodicalId":356067,"journal":{"name":"2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting (AT-AP-RASC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Direct Inversion of the MLNG Field Evaluation Operator for Fast Solution of Electromagnetic Scattering Problems\",\"authors\":\"E. Chernokozhin, A. Boag\",\"doi\":\"10.23919/AT-AP-RASC54737.2022.9814295\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A method for direct inversion of the EFIE operator is proposed. The method is based on the Multilevel Nonuniform Grid (MLNG) approach, which previously has been successfully used in fast iterative solvers. However, the MLNG approach is also suitable for direct solvers. The efficiency of the method stems from the fact that the direct inversion of MLNG-compressed integral operators reduces to the inversion of banded matrices.\",\"PeriodicalId\":356067,\"journal\":{\"name\":\"2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting (AT-AP-RASC)\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-05-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting (AT-AP-RASC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.23919/AT-AP-RASC54737.2022.9814295\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting (AT-AP-RASC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.23919/AT-AP-RASC54737.2022.9814295","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Direct Inversion of the MLNG Field Evaluation Operator for Fast Solution of Electromagnetic Scattering Problems
A method for direct inversion of the EFIE operator is proposed. The method is based on the Multilevel Nonuniform Grid (MLNG) approach, which previously has been successfully used in fast iterative solvers. However, the MLNG approach is also suitable for direct solvers. The efficiency of the method stems from the fact that the direct inversion of MLNG-compressed integral operators reduces to the inversion of banded matrices.
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