JOURNAL OF RADARS
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JOURNAL OF RADARS  2013, Vol. 2 Issue (1): 77-85    DOI: 10.3724/SP.J.1300.2012.20100
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Design and Implementation of Wideband Exciter for an Ultra-high Resolution Airborne SAR System
Jia Ying-xin①② Wang Yan-fei
(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)
(Graduate University of Chinese Academy of Sciences, Beijing 100049, China)
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Abstract 

We designed and implemented a wideband Linear Frequency Modulated (LFM) pulse compression exciter with 14.8 GHz carrier and 3.2 GHz bandwidth based on an ultra-high resolution airborne SAR system with a better than 0.1 m resolution. The selection of a signal generation scheme and some key technique points for wideband LFM waveform are presented in detail. Then, an acute test and analysis of the LFM signal are performed. The final airborne experiments demonstrate the validity of the LFM source, which is one of the subsystems in an ultra-high resolution airborne SAR system.

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Jia Ying-xin
Wang Yan-fei
Key wordsSynthetic Aperture Radar (SAR)   Exciter   Wideband   Linear Frequency Modulation (LFM)     
Received: 2012-12-17; Published: 2013-01-30
Cite this article:   
Jia Ying-xin,Wang Yan-fei. Design and Implementation of Wideband Exciter for an Ultra-high Resolution Airborne SAR System[J]. JOURNAL OF RADARS, 2013, 2(1): 77-85.
 
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