Investigation of Bandwidth Effects on UWB Near-Field Imaging

被引：0
|
作者：
Zhuge, Xiaodong [1 ]
Yarovoy, Alexander [1 ]
机构：
[1] Delft Univ Technol, MTSR, Mekelweg 4, NL-2628 CD Delft, Netherlands
来源：
2011 8TH EUROPEAN RADAR CONFERENCE | 2011年
关键词：
ARRAYS;
D O I：
暂无
中图分类号：
TP7 [遥感技术];
学科分类号：
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要：
This paper investigates the properties of ultra-wideband focusing in the near-field and far-field. The decisive influence of the system's fractional bandwidth instead of previously claimed array sparsity on the imaging performance of a UWB array is theoretically proved and numerically demonstrated. Our theory shows that the fractional bandwidth of an imaging system must exceed 100% in order to benefit from the merit of the unique UWB array properties and regulate grating lobes thus allowing high resolution imaging with significantly fewer number of array elements.
引用
收藏
页码：230 / 233
页数：4
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