Beamforming in the Frequency Domain with Applications to Microwave Breast Imaging

被引：0
|
作者：
Curtis, Charlotte [1 ]
Fear, Elise [1 ]
机构：
[1] Univ Calgary, Dept Elect & Comp Engn, Calgary, AB, Canada
来源：
2014 8TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP) | 2014年
关键词：
CANCER DETECTION;
D O I：
暂无
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：
Delay and sum (DAS) beamforming is a common time domain technique used to reconstruct images from ultrawideband radar data. DAS is straightforward and fast, but requires careful selection of an appropriate time step. This paper presents a frequency domain formulation of the standard DAS algorithm. While mathematically equivalent to DAS, the frequency domain approach eliminates the dependence on time step and allows for a higher quality image from fewer data samples.
引用
收藏
页码：72 / 76
页数：5
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