ESTIMATION OF DATA MEMORY CAPACITY FOR CIRCULARLY POLARIZED SYNTHETIC APERTURE RADAR ONBOARD UNMANNED AERIAL VEHICLE PLATFORM (CP-SAR UAV)

Authors

  • P. Rizki Akbar Chiba University, Japan
  • J.T. Sri Sumantyo Chiba University, Japan
  • V.C.Koo Chiba University, Japan
  • H.Kuzel Chiba University, Japan

DOI:

https://doi.org/10.30536/j.ijreses.2010.v7.a1540

Keywords:

synthetic aperture radar, circular polarization, 3-dB axial ratio, CP-SAR, unmanned aerial vehicle

Abstract

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.

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Published

2025-11-26

Issue

Vol. 7 No. 1 (2010)

Section

Articles

License

Copyright (c) 2010 Author (S)

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