现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
23期
139-141,145
,共4页
渐近相位%高阶叠层基函数%零阶相位基函数%快速多级子方法%电磁散射
漸近相位%高階疊層基函數%零階相位基函數%快速多級子方法%電磁散射
점근상위%고계첩층기함수%령계상위기함수%쾌속다급자방법%전자산사
asymptotic phase%higher-order hierarchical basis function%zero-order phasic basis function%multilevel fast mul-tipole algorithm%electromagnetic scattering
由入射波与面电流的关系,引出了渐近相位(AP)在高阶叠层基函数(HO?RWG)中的应用,并运用到矩量法(MOM)中,与快速多级子方法(MLFMA)结合,分析了电大尺寸复杂目标的电磁散射特性。与高阶叠层基函数和零阶相位基函数(AP?CRWG)相比,在相同的计算精度下,都可以大大减少未知量数量,从而可以节省大量内存和计算时间。计算实例表明,该方法有较高的精确性和有效性。
由入射波與麵電流的關繫,引齣瞭漸近相位(AP)在高階疊層基函數(HO?RWG)中的應用,併運用到矩量法(MOM)中,與快速多級子方法(MLFMA)結閤,分析瞭電大呎吋複雜目標的電磁散射特性。與高階疊層基函數和零階相位基函數(AP?CRWG)相比,在相同的計算精度下,都可以大大減少未知量數量,從而可以節省大量內存和計算時間。計算實例錶明,該方法有較高的精確性和有效性。
유입사파여면전류적관계,인출료점근상위(AP)재고계첩층기함수(HO?RWG)중적응용,병운용도구량법(MOM)중,여쾌속다급자방법(MLFMA)결합,분석료전대척촌복잡목표적전자산사특성。여고계첩층기함수화령계상위기함수(AP?CRWG)상비,재상동적계산정도하,도가이대대감소미지량수량,종이가이절성대량내존화계산시간。계산실례표명,해방법유교고적정학성화유효성。
In this paper,since the relations of the incident wave and surface?current,the application of asymptotic phase (AP)in the higher?order hierarchical basis functions(HO?RWG)is derived,and applied in method of moment(MOM). The electromagnetic scattering features of electrical?large targets are analysed in combination with multilevel fast multipole algorithm (MLFMA). Compared with the higher?order hierarchical basis functions and zero?order phase basis functions(AP?CRWG),the unknown quantity in this method can be cut off more in the same computational precision Thereby,much of memory and time can be saved. Numerical examples in radar cross section calculation demonstrate the accuracy and efficiency of the proposed method.