Displacement estimation apparatus, displacement estimation method, and computer-readable recording medium
AssigneeNEC Corporation
InventorsSakiko Mishima, Takahiro Kumura, Murtuza Petladwala
Life of this patent
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Abstract
A displacement estimation apparatus includes: a first displacement estimation unit estimates first displacement that occurred in a structure, based on change of a signal from an optical fiber cable laid in the structure; and a second displacement estimation unit that estimates bias included in the estimated first displacement, and calculating second displacement by removing the bias from the first displacement.
Claims9
A displacement estimation apparatus comprising:
- at least one memory storing instructions;
- and
- at least one processor configured to execute the instructions to:
- estimate first displacement that occurred in a structure, based on change of a signal from an optical fiber cable laid in the structure;
- and
- estimate bias included in the estimated first displacement, and calculating second displacement by removing the bias from the first displacement.
A displacement estimation method in which
- a processing apparatus:
- estimates first displacement that occurred in a structure, based on change of a signal from an optical fiber cable laid in the structure;
- and
- estimates bias included in the estimated first displacement, and calculates second displacement by removing the bias from the first displacement.
A non-transitory computer-readable recording medium that includes a program recorded thereon, the program including instructions that cause a computer to:
- estimate first displacement that occurred in a structure, based on change of a signal from an optical fiber cable laid in the structure;
- and
- estimate bias included in the estimated first displacement, and calculate second displacement by removing the bias from the first displacement.
Dependencies are inferred from the claim text.