Providing GPS pseudo-ranges
First Claim
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1. A vehicle position location apparatus comprising:
- an aiding data source; and
a computer configured to execute a stored software program to perform vehicle position estimation, wherein a first output signal of the computer comprises at least one computed pseudo-range to a global positioning system (GPS) satellite.
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Abstract
A vehicle location determination system and method includes a vehicle-mounted position determining system, including a computer for executing position determining software, and at least one aiding data source such as a global positioning system (GPS) receiver, an odometer, gyroscope, a short-range radio link or a map database. In response to a request by a position determining entity (PDE) or other requesting entity a response is provided, which may include a computed pseudo-range to one or more GPS satellites.
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Citations
15 Claims
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1. A vehicle position location apparatus comprising:
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an aiding data source; and
a computer configured to execute a stored software program to perform vehicle position estimation, wherein a first output signal of the computer comprises at least one computed pseudo-range to a global positioning system (GPS) satellite. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of providing vehicle position determination information, the method comprising:
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receiving aiding data;
computing a vehicle geographic location;
computing a pseudo-range between a global positioning system (GPS) satellite and the vehicle; and
providing the computed pseudo-range to a requesting system. - View Dependent Claims (10, 11, 12, 13)
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14. A method of determining the position of a vehicle, the method comprising:
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receiving a request to perform position determination (PD);
sending a PD request message to a vehicle;
receiving a response message from the vehicle, the response message including a computed pseudo-range;
receiving and interpreting the response message;
computing the position of the vehicle from data contained in the response message, including the computed pseudo-range; and
responding to the request to perform PD. - View Dependent Claims (15)
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Specification