Development of a MIMO VHF Radar for the Search of the Oldest Ice in Antarctica

被引：1
|
作者：
Li, L. [1 ]
Wattal, S. [1 ]
Nunn, J. [1 ]
Paden, J. [2 ]
Yan, J-B [1 ]
机构：
[1] Univ Alabama, Elect & Comp Engn, Tuscaloosa, AL 35487 USA
[2] Univ Kansas, Elect Engn & Comp Sci, Lawrence, KS 66045 USA
来源：
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS | 2022年 / 19卷
基金：
美国国家科学基金会;
关键词：
Antenna arrays; Radar; Radar antennas; Ice; Gain; Transmitting antennas; Hardware; Antarctica; ice sounding; radar; very high frequency (VHF);
D O I：
10.1109/LGRS.2022.3176287
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
A chirped-pulse radar ice sounder, operating at VHF band, was developed in 2019 for the search of the "oldest ice" in East Antarctica. This ground-penetrating radar system has a multiple-in-multiple-out (MIMO) configuration with a total of eight channels. Each transmitter generates a 170-230-MHz chirp signal with a peak power of 1 kW. To support the half-duplex operation with such high power, a customized T/R switch is designed and developed. To increase the power-aperture product, the radar is equipped with an eight-element linear antenna array, which has a length of 8 m. In this letter, the radar hardware architecture, high-power T/R switch design, antenna array design, and sample field measurement results from Dome C Antarctica are presented.
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页数：5
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