Ultra‐wideband imaging with an improved backward projection algorithm for far‐field applications

Ultra‐wideband (UWB) radar imaging is widely used in penetration detection, target location and detection, and vital monitoring because of its high interference immunity and excellent target recognition with high resolution. In this paper, we report the design of a UWB stepper radar imaging system b...

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Bibliographic Details
Published inMicrowave and optical technology letters Vol. 66; no. 1
Main Authors Xu, Huaqiang, Fan, Yucheng, Li, Xiaoshuang, Liu, Jianwei, Wang, Yumeng, Yu, Xinchang, Zhao, Yuefeng, Wang, Jingjing
Format Journal Article
LanguageEnglish
Published New York Wiley Subscription Services, Inc 01.01.2024
Subjects
Algorithms
Antennas
back‐projection algorithms
Electromagnetic radiation
far‐field
Interference immunity
Network analysers
Radar imaging
Target detection
Target recognition
Ultrawideband
Ultrawideband radar
UWB
Vivaldi antenna
VNA
Wave attenuation
Wave propagation
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Summary:Ultra‐wideband (UWB) radar imaging is widely used in penetration detection, target location and detection, and vital monitoring because of its high interference immunity and excellent target recognition with high resolution. In this paper, we report the design of a UWB stepper radar imaging system by using a vector network analyzer and a specially designed novel Vivaldi antenna for far‐field imaging applications. An anti‐attenuation backward projection (AA‐BP) algorithm is proposed to alleviate the attenuation impact of electromagnetic wave propagation. The AA‐BP algorithm and the specially designed Vivaldi antenna are jointly applied in our experiments on multiple targets through wall imaging in both free space and multiple‐path propagation environments. The experimental results show that our reported imaging system achieves desirable performances of far‐field imaging.
Bibliography:ObjectType-Article-1
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ISSN:0895-2477
1098-2760
DOI:10.1002/mop.34034