US 12,631,713 B2 · Location estimation device and method for estimating location of transmitting device under water

Abstract

A transmitting device location estimation device and a transmitting device location estimation method for estimating the location of a transmitting device under water are disclosed. A transmitting device location estimation device, in a transmitting device location estimation device for estimating the location of a transmitting device under water, is characterized by comprising: a distance location estimation unit that estimates the distance and location of the transmitting device based on the time taken to receive the transmission signal transmitted by the transmitting device and the speed of the transmission signal; a direction estimation unit that estimates the direction of the transmitting device; and an estimated location confirmation unit that confirms the estimated location of the transmitting device based on the estimated distance and location of the transmitting device and the estimated direction of the transmitting device.

Claims8

Dependent claims

In a transmitting device location estimation device for estimating the location of a transmitting device under water, the transmitting device location estimation device is characterized by comprising:

a distance location estimation unit that estimates the distance and location of the transmitting device based on the time taken to receive the transmission signal transmitted by the transmitting device and the speed of the transmission signal;
a direction estimation unit that estimates the direction of the transmitting device;
and
an estimated location confirmation unit that confirms the estimated location of the transmitting device based on the estimated distance and location of the transmitting device and the estimated direction of the transmitting device;
wherein the estimated location confirmation unit includes:
a vertical distance calculation unit that calculates a vertical distance to the transmitting device based on the estimated distance and location of the transmitting device and the estimated direction of the transmitting device;
and
a distance location estimation unit that corrects the estimated location of the transmitting device when the calculated distance in the vertical direction is greater than or equal to a preset distance.

5 more elements

A method for estimating the location of a transmitting device, in a method for estimating the location of a transmitting device under water, characterized by comprising the steps of:

estimating the distance and location of the transmitting device based on the time it takes to receive a transmission signal transmitted by the transmitting device and the speed of the transmission signal;
estimating the direction of the transmitting device;
and
confirming the estimated location of the transmitting device based on the estimated distance and location of the transmitting device and the estimated direction of the transmitting device;
wherein the step of confirming the estimated location of the transmitting device includes the steps of:
calculating a vertical distance to the transmitting device based on the estimated distance and location of the transmitting device and the estimated direction of the transmitting device;
and
correcting the estimated location of the transmitting device when the calculated vertical distance is more than a preset distance,
calculating a vertical distance to the transmitting device based on the estimated distance and location of the transmitting device and the estimated direction of the transmitting device;
and
correcting the estimated location of the transmitting device when the calculated vertical distance is more than a preset distance.

8 more elements

Dependencies are inferred from the claim text.

Location estimation device and method for estimating location of transmitting device under water

Life of this patent

Location estimation device and method for estimating location of transmitting device under water

Life of this patent

Abstract

Claims8