GLOBAL POSITIONING SYSTEM AND DEAD RECKONING (GPS&DR) INTEGRATED NAVIGATION SYSTEM
First Claim
1. A global positioning system and dead reckoning (GPS&
- DR) integrated navigation system comprising;
a GPS receiver coupled to a moving object for periodically calculating GPS navigation information of said moving object according to satellite signals;
a DR system coupled to said moving object for periodically calculating DR navigation information of said moving object by integrating moving information of said moving object with reference position and orientation from the DR system; and
a filter coupled to said GPS receiver and said DR system for periodically calculating navigation information of said moving object, wherein said filter gets observation information by integrating said GPS navigation information and said DR navigation information according to a weight value of said GPS navigation information and a weight value of said DR navigation information, and the filter calculates a current navigation information by integrating said observation information with previous navigation information from a plurality of previous cycles.
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Abstract
A global positioning system and dead reckoning (GPS&DR) integrated navigation system includes a GPS receiver coupled to a moving object for periodically generating GPS navigation information of said moving object, a DR system coupled to said moving object for periodically calculating DR navigation information of said moving object, and a filter coupled to said GPS receiver and said DR system for periodically calculating navigation information of said moving object, wherein said filter gets observation information by integrating said GPS navigation information and said DR navigation information according to a weight value of said GPS navigation information and a weight value of said DR navigation information, and calculates a current navigation information by integrating said observation information with previous navigation information from a plurality of previous cycles.
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Citations
19 Claims
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1. A global positioning system and dead reckoning (GPS&
- DR) integrated navigation system comprising;
a GPS receiver coupled to a moving object for periodically calculating GPS navigation information of said moving object according to satellite signals; a DR system coupled to said moving object for periodically calculating DR navigation information of said moving object by integrating moving information of said moving object with reference position and orientation from the DR system; and a filter coupled to said GPS receiver and said DR system for periodically calculating navigation information of said moving object, wherein said filter gets observation information by integrating said GPS navigation information and said DR navigation information according to a weight value of said GPS navigation information and a weight value of said DR navigation information, and the filter calculates a current navigation information by integrating said observation information with previous navigation information from a plurality of previous cycles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- DR) integrated navigation system comprising;
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11. A method for providing navigation information of a moving object, comprising the steps of:
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calculating GPS navigation information of said moving object according satellite signals at a GPS receiver; calculating DR navigation information of said moving object by integrating moving information of said moving object with reference position and orientation at a DR system; getting observation information by integrating said GPS navigation information and said DR navigation information according to a weight value of said GPS navigation information and a weight value of said DR navigation information at a filter; and calculating a current navigation information by integrating said observation information with previous navigation information from a plurality of previous cycles at said filter. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification