Self-surveying relative GPS (global positioning system) weapon guidance system
First Claim
1. A self-surveying relative GPS (Global Positioning System) weapon guidance system, said system comprising:
- a plurality of GPS satellites, said GPS satellites each operable to transmit GPS data;
a transportable unattended ground sensor, said transportable unattended ground sensor including GPS receiver means for receiving said GPS data and determining a second location of the transportable unattended ground sensor, self-surveying means for determining a first benchmark location of the transportable unattended ground sensor, said first benchmark location being more accurate than the second location, error means for determining GPS error between the first benchmark location and the second location, and transmitter means for transmitting the GPS error; and
a guided weapon, said guided weapon operable to utilize the GPS error to substantially increase the delivery accuracy of the guided weapon.
3 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is a self-surveying relative GPS (Global Positioning System) weapon guidance system (10). This guidance system (10) includes multiple GPS satellites (12-18) which transmit GPS data to a ground sensor (20). The ground sensor (20) includes a GPS receiver (24), a self-surveying computer (28), a data formatter (30) and a transmitter (32). The GPS receiver (24) receives the GPS data and determines a second location of the ground sensor (20) based on the GPS data. The self-surveying computer (28) determines a first location of the ground sensor (20) based on the GPS data gathered over time, which is more accurate than the second location. The data formatter (30) determines a GPS error between the first and second locations which is transmitted by the transmitter (32). The GPS error is used by guided weapons in the vicinity of the ground sensor (20) to substantially increase the delivery accuracy of the guided weapons (40).
53 Citations
20 Claims
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1. A self-surveying relative GPS (Global Positioning System) weapon guidance system, said system comprising:
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a plurality of GPS satellites, said GPS satellites each operable to transmit GPS data; a transportable unattended ground sensor, said transportable unattended ground sensor including GPS receiver means for receiving said GPS data and determining a second location of the transportable unattended ground sensor, self-surveying means for determining a first benchmark location of the transportable unattended ground sensor, said first benchmark location being more accurate than the second location, error means for determining GPS error between the first benchmark location and the second location, and transmitter means for transmitting the GPS error; and a guided weapon, said guided weapon operable to utilize the GPS error to substantially increase the delivery accuracy of the guided weapon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A self-surveying relative GPS (Global Positioning System) weapon guidance system, said system comprising:
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at least four (4) GPS satellites, said GPS satellites each operable to transmit GPS data; a plurality of transportable unattended ground sensors, said plurality of transportable unattended ground sensors each including a GPS receiver for receiving said GPS data and determining a second location of the transportable unattended ground sensor, a self-surveying computer for determining a first benchmark location of the transportable unattended ground sensor over time, said first benchmark location being more accurate than the second location, error means for determining a GPS error between the first benchmark location and the second location, and transmitter means for transmitting the GPS errors; a command center, said command center operable to receive the GPS errors from the plurality of transportable unattended ground sensors and determine a median GPS error from the GPS errors; and a plurality of guided weapons, said guided weapons operable to utilize the median GPS error to substantially increase the delivery accuracies of the guided weapons. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method for accurately guiding a guided weapon, said method comprising the steps of:
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positioning a transportable unattended ground sensor within an area of multiple targets having an initially unknown benchmark location; determining a first benchmark location of the transportable unattended ground sensor from a self-surveying computer within the transportable unattended ground sensor, said first benchmark location being more accurate than a second location; determining the second location of the transportable unattended ground sensor from a GPS (Global Positioning System) receiver within the ground sensor; determining a GPS error between the first benchmark location and the second location; transmitting the GPS error from the transportable unattended ground sensor; and utilizing the GPS error to more accurately guide the guided weapon. - View Dependent Claims (19, 20)
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Specification