Calibration of Spaceborne Polarimetric SAR Data Using Particle Swarm Optimization(WSANE 2009 (Workshop for Space, Aeronautical and Navigational Electronics))

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概要

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• A calibration method for spaceborne polarimetric SAR data using a particle swarm optimization (PSO) is discussed in this report. Recently some satellites which have polarimetric synthetic aperture radar were launched, and the polarimetric data analysis techniques are being developed for terrain classification, forest biomass and soil moisture estimations, etc. Thus, polarimetric calibration becomes an important issue for accurate polarimetric analysis. However, typical polarimetric calibration methods have some restrictions. For example, Freeman method requires the polarimetric data which satisfy reflection symmetry and does not estimate cross-talks. Thus, it is desired that a polarimetric calibration method is needed to estimate all polarimetric calibration parameters by using polarimetric data without considering reflection symmetry. In this report, a polarimetric calibration technique based on a particle swarm optimization is proposed. This proposed method can estimate cross-talks, channel imbalances and Faraday rotation angle using one trihedral corner reflector and the measured polarimetric SAR data with non-reflection symmetry.

• 2009-10-26

著者

• MORIYAMA Toshifumi

  Faculty of Engineering, Nagasaki University

• OHASHI Jun

  Graduate school of Science and Technology, Nagasaki University

• Ohashi Jun

  Graduate School Of Science And Technology Nagasaki University

• Moriyama Toshifumi

  Faculty Of Engineering Nagasaki University

関連論文

• Calibration of Spaceborne Polarimetric SAR Data Using Particle Swarm Optimization(WSANE 2009 (Workshop for Space, Aeronautical and Navigational Electronics))
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• Forward-Backward Time-Stepping Method Applied to Reconstruction of Dispersive Objects(WSANE 2009 (Workshop for Space, Aeronautical and Navigational Electronics))
• Reduction of Surface Clutter by a Polarimetric FM-CW Radar in Underground Target Detection
• Calibration of Spaceborne Polarimetric SAR Data Using a Genetic Algorithm(WSANE 2008 (Workshop for Space, Aeronautical and Navigational Electronics))
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