System and method for monitoring and reporting GPS pseudo range correction data
First Claim
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1. A system comprising:
- a first receiver coupled to a first antenna, located at a first known location, said first receiver for receiving signals through said first antenna and generating in response thereto, information representative of a difference between said first location and a first computed location;
a second receiver coupled to a second antenna, located at a second, known location, said second receiver for receiving signals through said second antenna and further for receiving said information from said first receiver and generating in response thereto an enhanced position determination of said second antenna; and
, a processor for making a comparison of said enhanced position determination of said second antenna with said second location and generating a signal representative of a characteristic of said comparison.
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Abstract
A differential GPS receiver system in which a first receiver at a known location generates pseudo range correction data and a second GPS receiver at a nearby second known location uses the data to determine an enhanced calculated position of the second GPS receiver, which is then compared with the known second location. If the enhanced calculated position falls within an acceptable level of error from the known position, then the pseudo range correction data is transmitted to mobile receivers.
13 Citations
20 Claims
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1. A system comprising:
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a first receiver coupled to a first antenna, located at a first known location, said first receiver for receiving signals through said first antenna and generating in response thereto, information representative of a difference between said first location and a first computed location;
a second receiver coupled to a second antenna, located at a second, known location, said second receiver for receiving signals through said second antenna and further for receiving said information from said first receiver and generating in response thereto an enhanced position determination of said second antenna; and
,a processor for making a comparison of said enhanced position determination of said second antenna with said second location and generating a signal representative of a characteristic of said comparison. - View Dependent Claims (2, 3, 4, 5)
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6. A system comprising:
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means for generating pseudo range correction data;
means for generating an enhanced position determination as a function of said pseudo range correction data;
means for making a comparison of said enhanced position determination with a surveyed location; and
,means for selectively transmitting said pseudo range correction data as a function of said comparison. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. A method of determining a position of a mobile object comprising the steps of:
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receiving a first signal at a first location generating a first correction signal at said first location in response to said first signal;
providing said first correction signal to a second location;
determining a calculated position of said second location in response to said first correction signal;
comparing said calculated position with a predetermined position of said second location and generating a comparison signal; and
transmitting said first correction signal to a third location if said comparison signal has a predetermined relationship with respect to a reference. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification