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遥感技术与应用  2008, Vol. 23 Issue (1): 93-97    DOI: 10.11873/j.issn.1004-0323.2008.1.93
技术方法     
高分辨率成像冰川厚度探测雷达数字接收机设计与实现
赵 博1,2,刘小军1,方广有1
(1.中国科学院电子学研究所高功率微波与电磁辐射重点实验室,北京 100080;
2.中国科学院研究生院,北京 100049)
The Design and Implementation of Digital Receiver for High Resolution
Imaging Glacier Penetrating Radar System
ZHAO Bo1,2,LIU Xiao-jun1,FANG Guang-you1
(1.The Key Laboratory of High Power Microwave and Electromagnetic Radiation,The Institute of
Electronics,Chinese Academy of Sciences, Beijing10080,China;
2. Graduate University of Chinese Academy of Sciences, Beijing100049,China )
 全文: PDF(1641 KB)  
摘要:

雷达技术是陆地和极地冰川厚度探测的重要手段。高分辨率成像冰川厚度探测雷达工作在VHF波段,接收机采用了高低增益两个通道,提高了系统的接收灵敏度。回波信号的采集采用直接中频采样技术,对获取的数字信号进行数字脉冲压缩处理,降低了接收机系统的复杂性。给出了采样频率的选取和脉冲压缩技术的实现方法,通过对实测数据的分析表明该设计是可行的。

关键词: 冰川探测雷达带通采样中频采样正交检波数字脉冲压缩Chirp信号    
Abstract:

Radar is the important means for land and polar glacier depth sounding. High-resolution imaging
glacier penetrating radar (HRI-GPR) works at VHF band. A dual-channel receiver is introduced for improving the performance of HRI-GPR system. In order to reduce the complexity of the receiver, an immediate I.F. sampling technology is adopted for signal acquisition and the pulse compression in digital domain is done in the receiver.The selection of sampling frequency and implementation method of pulse compression are presented in this paper.The designed receiver is successfully applied in our HRI-GPR system.

Key words: Glacier Penetrating Radar    Band pass sampling    I.F.sampling    Quadrature detection    Digital pulse compression    Chirp signal
收稿日期: 2007-09-30 出版日期: 2011-10-24
:  TN 957.5  
基金资助:

国家自然科学基金资助项目(60551002)。

作者简介: 赵博(1983-),男,博士研究生,主要从事探地雷达数据采集和信号处理等方面的研究。E-mail:zhao-bo04@mails.gucas.ac.cn。
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引用本文:

赵 博,刘小军,方广有. 高分辨率成像冰川厚度探测雷达数字接收机设计与实现[J]. 遥感技术与应用, 2008, 23(1): 93-97.

ZHAO Bo,LIU Xiao-jun,FANG Guang-you. The Design and Implementation of Digital Receiver for High Resolution
Imaging Glacier Penetrating Radar System. Remote Sensing Technology and Application, 2008, 23(1): 93-97.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2008.1.93        http://www.rsta.ac.cn/CN/Y2008/V23/I1/93

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