Analysis of the Bragg Resonance Scattering in L-band JERS-1 SAR and Pi-SAR Images of Rice Paddies(WSANE2006)
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概要
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This article presents the analysis of the Bragg scattering phenomenon which has been observed in the images of machine-planted rice paddies acquired by the JERS-1 L-band synthetic aperture radar (SAR). The simultaneous measurements of rice plants were made at the SAR data acquisition times. Large differences of 20-25 dB in image intensity between the transplanting and ripening stages are found to be dependent on the planting direction and bunch separation. This selective image enhancement is a result of the Bragg resonance backscatter due to the double-bounce of incident L-band microwave between the flooded water surface and periodically planted bunches of rice plants. A support to the double-bounce scattering is provided by the decomposition analysis of L-band and X-band polarimetric Pi-SAR data.
- 社団法人電子情報通信学会の論文
- 2006-04-03
著者
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Ouchi Kazuo
Kochi University Of Technology
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Ouchi Kazuo
National Defense Acad. Yokosuka‐shi Jpn
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WANG Haipeng
Kochi University of Technology
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ISHITSUKA Naoki
NIAES
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SAITO Genya
Tohoku Univ.
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MOHRI Kentaro
Okayama Univ.
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Ouchi Kazuo
Department Of Information Science National Defense Academy
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Wang Haipeng
Fudan Univ. Shanghai Chn
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