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US 8,570,214 B2Granted
Position calculating method and position calculating device
AssigneeSeiko Epson Corporation
InventorTsubasa Shirai
Life of this patent
Estimating the term…
Abstract
There is provided a position calculating method including: calculating a pseudorange by receiving a satellite signal from a positioning satellite; and calculating a position using a normal mixture distribution model which expresses distribution of an error included in the pseudorange with normal mixture distribution.
Claims6
A position calculating method comprising:
- calculating a pseudorange by receiving a satellite signal from a positioning satellite;
- and
- calculating a position using a normal mixture distribution model which expresses distribution of an error included in the pseudorange with normal mixture distribution,
- wherein the normal mixture distribution model is defined as a probability density function having the error as a variable, and
- wherein the calculating of the position is to repeat calculating an error included in the pseudorange using an assumed position of the position, calculating a probability corresponding to the error using the normal mixture distribution model, and updating the assumed position using the probability.
2 more elements
A position calculating device comprising:
- a pseudorange calculating section which calculates a pseudorange by receiving a satellite signal from a positioning satellite;
- and
- a position calculating section which calculates a position using a normal mixture distribution model which expresses distribution of an error included in the pseudorange with normal mixture distribution,
- wherein the normal mixture distribution model is defined as a probability density function having the error as a variable, and
- wherein the position calculating section calculates the position by repeating calculating an error included in the pseudorange using an assumed position of the position, calculating a probability corresponding to the error using the normal mixture distribution model, and updating the assumed position using the probability.
2 more elements
Dependencies are inferred from the claim text.