NDLI: A high-resolution polar ice penetrating radar and experiments in the 28th Chinese National Antarctic Research Expedition

Content Provider	IEEE Xplore Digital Library
Author	Xiaojun Liu Shinan Lang Bo Zhao Feng Zhang Jun Li Bin Zhou Guangyou Fang Xiangbin Cui Bo Sun
Copyright Year	2014
Description	Author affiliation: Key Lab. of Electromagn. Radiat. & Sensing Technol., Inst. of Electron., Beijing, China (Xiaojun Liu; Shinan Lang; Bo Zhao; Feng Zhang; Jun Li; Bin Zhou; Guangyou Fang) \|\| Polar Res. Inst. of China, Shanghai, China (Xiangbin Cui; Bo Sun)
Abstract	Polar ice penetrating radar is one of the most important devices for polar ice depth sounding. A high resolution ice-penetrating radar is developed to measure the thickness of glacial ice and observe the internal structures and basal conditions of glaciers and ice sheets. With a transmitting frequency at 100-150 MHz, this radar provides a range resolution of about 2m and a penetrating depth about 3000m under polar ice. The radar system uses pulse compression and coherent integration techniques to obtain a high processing gain and improve the signal to noise ratio of the system. A high-speed Direct Digital Synthesizer (DDS) is applied to generate a chirp signal as an input source for the transmitter. The implementation of the digital unit is based on a piece of FPGA chip. To reduce the hardware complexity, intermediate frequency sampling is adopted to digitalize the received analog signal. The measurements were successfully implemented in the 28th Chinese National Antarctic Research Expedition (CHINARE 28, 2011/12) near China Zhongshan Station.
Starting Page	719
Ending Page	722
File Size	1171838
Page Count	4
File Format	PDF
ISBN	9781479967896
DOI	10.1109/ICGPR.2014.6970521
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-06-30
Publisher Place	Belgium
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Semiconductor device measurement Ice depth sounding Pulse measurements Chirp Zhongshan station Polar ice penetrating radar Gain measurement Antarctica Frequency measurement Thickness measurement Global Positioning System
Content Type	Text
Resource Type	Article

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