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US 6,693,592 B2Granted
Geographical navigation using multipath wireless navigation signals
AssigneeThe Charles Stark Draper Laboratory, Inc.
InventorsJohn R. Dowdle, Donald E. Gustafson, John M. Elwell, Jr.
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Abstract
A wireless navigational system and process utilize multipath wireless signals normally discarded from the navigation solution to enhance navigational performance under a range of operational scenarios. A relationship between the receiver's location and one or more multipath signals is established, facilitating subsequent navigation using the multipath signal(s).
Claims31
A method of navigating using a multipath wireless signal, the method comprising the steps of:
- providing navigation information indicative of a geographical location;
- receiving a multipath navigation signal;
- relating the multipath signal to the geographical location;
- and
- navigating using the multipath signal based on the relationship.
2 more elements
An apparatus for navigating using a multipath wireless signal, the apparatus comprising:
- circuitry for providing a geographical location;
- a receiver receiving a wireless multipath navigation signal;
- circuitry for relating the multipath signal to the geographical location;
- and
- circuitry for navigating using the multipath signal based on the relationship.
2 more elements
Dependencies are inferred from the claim text.