Positioning error range setting apparatus, positioning error range setting method, positioning error range setting processing program embodied on computer-readable medium and navigation apparatus
AssigneePioneer Corporation
InventorIsao Endo
Life of this patent
Estimating the term…
Abstract
A navigation apparatus includes: a multi-path detection unit which detects multi-path based on a pseudo-range; a pseudo-range error selection unit which selects an error in the pseudo-range based on the detected multi-path and navigation data; and an error ellipse calculation unit which calculates an error ellipse based on the pseudo-range error selected by the pseudo-range error selection unit and the received navigation data, and executes navigation processing based on a vehicle's own current position calculated by a positioning calculation unit and the error ellipse calculated by the error ellipse calculation unit.
Claims22
A positioning error range setting apparatus comprising:
- a calculating device for calculating a geographical position of a receiver by calculating a pseudo-range between said receiver and each of a plurality of transmitters based on a positioning signal transmitted from each of a plurality of said transmitters;
- a detecting device for detecting whether each said positioning signal is a signal received with occurrence of multi-path;
- and
- a determining device for determining a positioning error range of said geographical position based on arrangement of a plurality of said transmitters, a positioning error generated when calculating said pseudo-range and a detection result in said detecting device.
A navigation apparatus comprising:
- a positioning error range setting device comprising:
- a calculating device for calculating a geographical position of a receiver by calculating a pseudo-range between said receiver and each of a plurality of transmitters based on a positioning signal transmitted from each of a plurality of said transmitters;
- a detecting device for detecting whether each said positioning signal is a signal received with occurrence of multi-path;
- and a determining device for determining a positioning error range of said geographical position based on arrangement of a plurality of said transmitters, a positioning error generated when calculating said pseudo-range and a detection result in said detecting device;
- and
- an evaluating device for evaluating a position of a movable body positioned by dead-reckoning based on a geographical position of said receiver estimated based on said positioning signal and said positioning error range calculated by said positioning error range setting device.
A positioning error range setting method comprising:
- a calculation process of calculating a geographical position of a receiver by calculating a pseudo-range between said receiver and each of a plurality of transmitters based on a positioning signal transmitted from each of a plurality of said transmitters;
- a detection process of detecting whether each said positioning signal is a signal received with occurrence of multi-path;
- and
- a determination process of determining a positioning error range of said geographical position based on arrangement of a plurality of said transmitters, a positioning error generated when calculating said pseudo-range and a detection result in said detection process.
A positioning error range setting processing program embodied on a computer-readable medium which causes a computer to function as:
- a calculating device for calculating a geographical position of a receiver by calculating a pseudo-range between said receiver and each of a plurality of transmitters based on a positioning signal transmitted from each of a plurality of said transmitters;
- a detecting device for detecting whether each said positioning signal is a signal received with occurrence of multi-path;
- and
- a determining device for determining a positioning error range of said geographical position based on arrangement of a plurality of said transmitters, a positioning error generated when calculating said pseudo-range and a detection result of said detecting device.
Dependencies are inferred from the claim text.