ESTIMATION OF DATA MEMORY CAPACITY FOR CIRCULARLY POLARIZED SYNTHETIC APERTURE RADAR ONBOARD UNMANNED AERIAL VEHICLE PLATFORM (CP-SAR UAV)
| Main Authors: | Akbar, P. Rizki, Sumantyo, J.T. Sri, V.C.Koo, -, H.Kuzel, - |
|---|---|
| Other Authors: | LAPAN |
| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
National Institute of Aeronautics and Space of Indonesia (LAPAN)
, 2011
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| Online Access: |
http://jurnal.lapan.go.id/index.php/ijreses/article/view/1540 http://jurnal.lapan.go.id/index.php/ijreses/article/view/1540/1384 |
Daftar Isi:
- Previously only linear polarization is widely used in the Synthetic Aperture Radar(SAR) system onboard spaceborne and airborne platforms. In such linearly polarized SAR(LP-SAR) systems, Faraday rotation in the ionosphere and platform posture will contribute tothe system noise. Therefore to improve this situation, currently a novel Circularly PolarizedSynthetic Aperture Radar (CP-SAR) sensor is developed in Microwave Remote SensingLaboratory, Chiba University. Moreover, from this research, a new backscattering data basedon circularly polarized wave in the remote sensing field can be obtained. As an early stage ofthe development of this CP-SAR sensor, we built an Unmanned Aerial Vehicle (UAV)platform for testing CP-SAR sensor capabilities. In this paper, we describe the novel CP-SARsensor and the method to design CP-SAR UAV especially in estimating the requirement ofdata memory capacity. Also a smaller antenna is possible to be implemented since the 3-dBaxial ratio on antenna characteristic becomes the main parameter in this new CP-SARtechnique. Hence, a compact CP-SAR sensor onboard a small and low cost spaceborneplatform yielding a high accuracy SAR image data can be realized in the near future.