Measurement apparatus, measurement method, program, and information recording medium
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United States of America Patent
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Feb 22, 2022
Grant Date -
Feb 7, 2019
app pub date -
Feb 7, 2017
filing date -
Feb 15, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
In a measurement unit, a primary acceleration sensor is fixed at the center of gravity of a flying object or at a position within a certain error range from the center of gravity. A secondary acceleration sensor is fixed inside the flying object so as to be spaced from the center of gravity of the flying object. In a measurement apparatus, an acquirer acquires a primary acceleration measured by the primary acceleration sensor during flight of the flying object and a secondary acceleration measured by the secondary acceleration sensor during the flight of the flying object. An estimator estimates a spin rate per unit time of the flying object from the acquired primary acceleration and the acquired secondary acceleration using maximum likelihood estimation.
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