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http://dx.doi.org/10.5515/KJKIEES.2009.20.2.183

Development of High Resolution SAR(NexSAR) with 30 cm Resolution  

Kong, Young-Kyun (LIG Nex1)
Kim, Hyung-Chul (LIG Nex1)
Kim, Seung-Hwan (LIG Nex1)
Kim, Soo-Bum (LIG Nex1)
Yim, Jae-Hag (LIG Nex1)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.20, no.2, 2009 , pp. 183-192 More about this Journal
Abstract
SAR(Synthetic Aperture Radar) is an all-weather imaging radar and is widely used in military and civil application. Especially high-resolution SAR images are very important in military purpose because it can be used at target recognition application. LIG Nex1 developed a SAR system called NexSAR with bandwidth of 600 MHz and resolution of 30 cm to obtain technologies required for high-resolution SAR. To achieve 600 MHz bandwidth of waveform generator, two DDSs are used and its output signals are SSB modulated. And deramp technique is used to reduce the sampling rate of ADC at high resolution mode. NexSAR has stripmap and spotlight modes and its functionality and performances are evaluated through ground and flight tests.
Keywords
SAR; Synthetic Aperture Radar; NexSAR; High Resolution;
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  • Reference
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