Synthetic aperture radar signal processing device and synthetic aperture radar signal processing program
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United States of America Patent
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Sep 11, 2018
Grant Date -
Nov 9, 2017
app pub date -
Dec 15, 2014
filing date -
Dec 15, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
There are provided: a high-accuracy factor calculator for calculating, by a high-accuracy computation method, a distance R from a moving platform to a pixel position (a, b) within an observation target corresponding to an predicted position (xt, yt) and a phase factor A when a determination processor determines that an error is out of an allowable range; and a low-accuracy factor calculator for calculating, by a computation method with lower accuracy than that of the high-accuracy factor calculator (e.g., a computation method using an approximation algorithm), a distance R′ from the moving platform to the pixel position (a, b) corresponding to the predicted position (xt, yt) within the observation target and a phase factor A′ when the determination processor determines that the error is within the allowable range.
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