Mr. Keiji Honda Profile

Keiji Honda

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Proceedings Article | 2 May 2024 Paper

A method for estimating layover areas for spaceborne SAR

Keiji Honda, Toshikazu Samura, Katsumi Tadamura

Proceedings Volume 13164, 131641J (2024) https://doi.org/10.1117/12.3018625

KEYWORDS: Satellites, Synthetic aperture radar

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We propose a method for determining layover areas during earth surface observation by a spaceborne synthetic aperture radar. Specifically, we construct a graph representing the distance from a satellite to a sampling point on the ground surface and use it to determine the existence of a span that overlaps with a length on the graph. If such a span exists, it will be extracted as a layover area. The efficiency of the proposed method is verified over a virtual terrain with known geometry and using the actual orbit path of the Advanced Land Observing Satellite-2, which is operated by the Japan Aerospace Exploration Agency.

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