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http://dx.doi.org/10.5515/KJKIEES.2012.23.10.1204

Analysis of the Radiation Patterns of Satellite SAR System with Active-Transponder  

Hwang, Ji-Hwan (Department of Electronic Information and Communication Engineering, Hongik University)
Kweon, Soon-Koo (Department of Electronic Information and Communication Engineering, Hongik University)
Oh, Yisok (Department of Electronic Information and Communication Engineering, Hongik University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.23, no.10, 2012 , pp. 1204-1211 More about this Journal
Abstract
Measurement and analysis results of the extracted radiation-patterns from the field-experiments which were conducted to acquire the generic technology for calibration and validation of the satellite SAR system(Synthetic Aperture Radar) are presented in this study. Prototype of active transponder is adjustable within maximum 63.1 dBsm of RCS (Radar Cross Section) and includes the receiving-function with external receiver. To increase an accuracy of these field experiments, we repetitively measured satellite SAR systems of the same operating mode(i.e., COSMO-SkyMed No. 2 & 3, hh-pol., strip-map himage mode, 3 m resolution). Then, the reliability of experimental results was cross-checked through analysis of the RCS of active transponder on SAR image. The property of azimuth radiation patterns of satellite SAR system extracted from them has $0.352^{\circ}$ of HPBW(half-power beamwidth), $0.691^{\circ}$ of FNBW(first-null beamwidth), and 11.17 dB of PSLR(peak to side lobe ratio), respectively.
Keywords
Satellite SAR System; COSMO-SkyMed; Polarimetric Active Transponder; Azimuth Radiation Pattern;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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