Truncation-Error Reduction in 2D Cylindrical/Spherical Near-Field Scanning

被引：16
|
作者：
Kim, Kristopher T. [1 ]
机构：
[1] USAF, Div Electromagnet Technol, Sensors Directorate, Res Lab, Hanscom AFB, MA 01731 USA
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2010年 / 58卷 / 06期
关键词：
Field expansion; near-field scanning; near-field to far-field transformation; Slepian functions; truncation error; BISTATIC RCS CALCULATIONS;
D O I：
10.1109/TAP.2010.2046850
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：
We introduce a near-field to far-field transformation for two-dimensional cylindrical/spherical scanning that significantly reduces angular-truncation errors. After examining the limitations of the traditional multipole-based expansion of truncated scan data, we consider an alternative expansion based on Slepian functions and show how far-field values can be extracted from the resulting expansion coefficients. We compare the performance and computational cost of the new transformation with those of the traditional one.
引用
收藏
页码：2153 / 2158
页数：6
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