On the existence of spurious modes in Battle-Lemarie based MRTD

被引：1
|
作者：
Sarris, CD [1 ]
Katehi, LPB [1 ]
机构：
[1] Univ Michigan, Dept Elect Engn & Comp Sci, Radiat Lab, Ann Arbor, MI 48109 USA
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2001年 / 11卷 / 02期
关键词：
MRTD; multiresolution analysis; numerical dispersion;
D O I：
10.1109/7260.914306
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A distinction between the effects of inaccuracy of the Battle-Lemarie wavelet based multiresolution time domain (W-MRTD) scheme for high spatial frequencies and spurious modes is drawn and explained in this letter. investigating the performance of the scheme under various excitation methods, it is concluded that what was described earlier in the literature as a spurious mode effect actually corresponds to alias frequencies stemming from the excitation of higher order modes by the wavelets, given that the latter are spectrally supported at higher wavenumbers.
引用
收藏
页码：71 / 73
页数：3
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