{"title":"计算粗糙表面散射场的快速物理光学方法","authors":"Feng-hua Song, Yumao Wu, Yaqiu Jin","doi":"10.1109/IWS49314.2020.9359992","DOIUrl":null,"url":null,"abstract":"In this paper, the fast physical optics (FPO) method for the scattering field of rough surface is proposed. The surface is discretized by quadratic patches. After transforming it into parameter coordinate system, the amplitude and function of physical optical integration are approximated by Lagrange interpolation polynomials. Finally, the closed-form formulas of FPO is obtained by using the complementary error function. Compared with the traditional method, FPO method can greatly reduce the number of patches when it is discrete, and the accuracy is within the acceptable error range. Numerical examples show the effectiveness of the proposed FPO method in accuracy.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The Fast Physical Optics Method for Calculating the Scattered Field From the Rough Surface\",\"authors\":\"Feng-hua Song, Yumao Wu, Yaqiu Jin\",\"doi\":\"10.1109/IWS49314.2020.9359992\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, the fast physical optics (FPO) method for the scattering field of rough surface is proposed. The surface is discretized by quadratic patches. After transforming it into parameter coordinate system, the amplitude and function of physical optical integration are approximated by Lagrange interpolation polynomials. Finally, the closed-form formulas of FPO is obtained by using the complementary error function. Compared with the traditional method, FPO method can greatly reduce the number of patches when it is discrete, and the accuracy is within the acceptable error range. Numerical examples show the effectiveness of the proposed FPO method in accuracy.\",\"PeriodicalId\":301959,\"journal\":{\"name\":\"2020 IEEE MTT-S International Wireless Symposium (IWS)\",\"volume\":\"3 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-09-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2020 IEEE MTT-S International Wireless Symposium (IWS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IWS49314.2020.9359992\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 IEEE MTT-S International Wireless Symposium (IWS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IWS49314.2020.9359992","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The Fast Physical Optics Method for Calculating the Scattered Field From the Rough Surface
In this paper, the fast physical optics (FPO) method for the scattering field of rough surface is proposed. The surface is discretized by quadratic patches. After transforming it into parameter coordinate system, the amplitude and function of physical optical integration are approximated by Lagrange interpolation polynomials. Finally, the closed-form formulas of FPO is obtained by using the complementary error function. Compared with the traditional method, FPO method can greatly reduce the number of patches when it is discrete, and the accuracy is within the acceptable error range. Numerical examples show the effectiveness of the proposed FPO method in accuracy.
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