UWB Sensor Characterization for Radar Sensing and Imaging in Superluminal Propagation Regions

被引：3
|
作者：
Winter, Robert S. C. [1 ]
Oloumi, Daniel [2 ]
Rambabu, Karumudi [1 ]
机构：
[1] Univ Alberta, Elect & Comp Engn Dept, Edmonton, AB T6G 2V4, Canada
[2] Infineon Technol Austria, A-9500 Villach, Austria
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2021年 / 69卷 / 01期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Radar imaging; Imaging; Shape; Dipole antennas; Antenna measurements; Apertures; Antenna near field; electromagnectic (EM) pulses; near field radar imaging; superluminal pulse propagation; synthetic aperture radar (SAR); DESIGN; COMPACT; SYSTEM;
D O I：
10.1109/TMTT.2020.3023095
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：
This article investigates the pulse propagation in the near field of a transmitter and reflector from the perspective of radar sensing and imaging. The peaks of the radiated and reflected pulses were found to have traveled at superluminal speeds in the near field of radar. The conceptual explanation and experimental demonstration of the unique properties of the radiated and reflected pulses and their impact on near field radar imaging are presented in this article. To confirm the superluminal propagation, in this study, we considered several ultrawideband (UWB) sensors and scatterers. The physics behind the superluminal propagation and pulse shape change in the radar near field is demonstrated using the Huygens principle, and a method to improve the imaging of radar in the near field while using synthetic aperture techniques is also proposed.
引用
收藏
页码：297 / 307
页数：11
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