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http://dx.doi.org/10.9766/KIMST.2018.21.2.166

A Study on Spotlight SAR Image Formation by using Motion Measurement Results of CDGPS  

Hwang, Jeonghun (The 3rd Research and Development Institute, Agency for Defense Development)
Ko, Young-Chang (The 3rd Research and Development Institute, Agency for Defense Development)
Kim, So-Yeon (The 3rd Research and Development Institute, Agency for Defense Development)
Kwon, Kyoung-Il (The 3rd Research and Development Institute, Agency for Defense Development)
Yoon, Sang-Ho (The 3rd Research and Development Institute, Agency for Defense Development)
Kim, Hyung-Suk (The 3rd Research and Development Institute, Agency for Defense Development)
Shin, Hyun-Ik (The 3rd Research and Development Institute, Agency for Defense Development)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.21, no.2, 2018 , pp. 166-172 More about this Journal
Abstract
To develop and evaluate the real-time SAR(Synthetic Aperture Radar) motion measurement system, true antenna phase center(APC) positions during SAT(Synthetic Aperture Time) are needed. In this paper, CDGPS(Carrier phase Differential Global Positioning System) post processing method is proposed to get the true APC position for spotlight SAR image formation. The CDGPS position is smoothed to remove high frequency noise which exists inherently in the carrier phase measurement. This paper shows smoothed CDGPS data is enough to provide the true APC for high-quality SAR image formation through motion measurement result, phase error estimation and IRF(Impulse Response Function) analysis.
Keywords
SAR; CDGPS; Smoothing Technique; Back-Projection Algorithm; Autofocus;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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