摘要
给出了一种大q值下马丢函数特征值的修正算法。上机实践表明,该方法所得结果对于谐振区高端(q值为650~1000),精度能够达到10^-4~10^-5。在谐报频域中,这一结果运用于求解大纵横比物体电磁散射问题中,能够满足工程的一般要求;文中还给出了对求解连分式的速进算法,该算法易于编程、能克服运算过程中的积累误差,具有精度高等特点。
In this paper, an approximate algorithm is proposed for the Mathieu characteristic value .The precision of the improvement method can satisfy general engineering requirement in dealing with the T - MATRIX method to determine large aspect ratio scattering problem of resonant mode(q: 650~1000).To get high accuracy in verifying the mentioned above, this paper also put forward a recurrence method tackling continue fraction.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
1999年第2期128-131,共4页
Journal of University of Electronic Science and Technology of China
关键词
马丢函数
特征值
连分式
双精度
电磁散射
Mathieu function
characteristic value
continued fraction
double precision