Multi-channel ultra-wideband radar sounder and imager
Multi-channel ultra-wideband radar sounder and imager
复制标题
多通道超宽带雷达探测仪和成像仪
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
D. Braaten
中科院分区：
文献类型：
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作者：
R. Hale;H. Miller;S. Gogineni;Jie;F. Rodríguez‐Morales;C. Leuschen;J. Paden;Jilu Li;T. Binder;D. Steinhage;M. Gehrmann;D. Braaten
在本文中，我们介绍了一种用于极地冰盖测量的多通道甚高频/特高频超宽带机载雷达测深仪和成像仪的研制情况。该雷达是由冰盖遥感中心（CReSIS）研发的，用于在德国阿尔弗雷德·魏格纳研究所（AWI）的巴斯勒BT - 67飞机上运行。该系统的工作频率为150到600兆赫兹，在自由空间中对应的垂直分辨率为33厘米。雷达在机身下方和两个机翼下配备了三个4米长的8单元天线子阵列，以支持8个发射通道和24个接收通道。每个发射通道的雷达波形可单独配置，以便能够对宽达10公里的冰床进行实时发射波束成形成像。2016年春季，该雷达系统作为AWI/CReSIS联合测试活动的一部分被部署到格陵兰岛，对冰川进行测量。本文展示了此次实地考察活动中的一些雷达样本数据，以说明该雷达的性能。
In this paper, we present the development of a multi-channel VHF/UHF ultra-wideband airborne radar sounder and imager for measurements of polar ice sheets. The radar was developed at the Center for Remote Sensing of Ice Sheets (CReSIS) for operation onboard the German Alfred Wegener Institute (AWI) Basler BT-67 aircraft. The system operates from 150 to 600 MHz corresponding to a vertical resolution of 33 cm in free space. The radar is equipped with three 4-m long 8-element antenna subarrays installed under the fuselage and both wings to support 8 transmit and 24 receive channels. The radar waveform from each transmit channel can be configured individually to enable real-time transmit beamforming for wide-swath ice bed imaging of up to 10 km wide. The radar system was deployed to Greenland in the spring of 2016 as a part of the joint AWI/CReSIS test campaign to conduct measurements over glaciers. Sample radar data from this field campaign are presented to illustrate the capability of the radar.