METHOD AND SYSTEM FOR SPECTRAL IMAGE CELESTIAL NAVIGATION
First Claim
1. A multi-spectrum celestial navigation system comprising:
- a first sensor responsive to at least a first and a second wavelength band of electromagnetic radiation, said sensor configured to generate a first output related to the first wavelength band of electromagnetic radiation and to generate a second output related to the second wavelength band of electromagnetic radiation;
a processor programmed to;
receive the first and second outputs;
determine at least one of a position of the sensor with respect to one or more stars and an attitude of the first sensor using a stored star catalog and the received first and second outputs; and
output at least one of the determined position and the determined attitude.
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Accused Products
Abstract
A method and system for a multi-spectrum celestial navigation system includes a first sensor responsive to at least a first and a second wavelength band of electromagnetic radiation. The sensor is configured to generate a first output related to the first wavelength band of electromagnetic radiation and to generate a second output related to the second wavelength band of electromagnetic radiation. The system also includes a processor programmed to receive the first and second outputs, determine a position of the sensor with respect to one or more stars using a stored star catalog and the received first and second outputs, and output the determined position.
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Citations
22 Claims
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1. A multi-spectrum celestial navigation system comprising:
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a first sensor responsive to at least a first and a second wavelength band of electromagnetic radiation, said sensor configured to generate a first output related to the first wavelength band of electromagnetic radiation and to generate a second output related to the second wavelength band of electromagnetic radiation; a processor programmed to; receive the first and second outputs; determine at least one of a position of the sensor with respect to one or more stars and an attitude of the first sensor using a stored star catalog and the received first and second outputs; and output at least one of the determined position and the determined attitude. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of determining a location of a vehicle using multi-spectrum celestial imager, said method comprising:
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acquiring an image of the sky using a sensor of the imager that is responsive to at least a first and a second wavelength band of electromagnetic radiation; determining a plurality of stellar objects in the image using the acquired image; comparing the stellar objects to a stored star catalog; determining at least one of a position of the imager relative to the determined stellar objects and an attitude of the imager relative to the stellar objects; and outputting the at least one of the determined position and the determined attitude. - View Dependent Claims (17, 18)
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19. A vehicle comprising:
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a plurality of sensors, each of said plurality of sensors responsive to at least a first and a second wavelength band of electromagnetic radiation emitted by a plurality of stellar objects in a field of view of the sensor, each sensor communicatively coupled to a sensor processor onboard the sensor, said sensor processor programmed to generate an image of the plurality of stellar objects; a main processor communicatively coupled to said sensor processor, said main processor programmed to; receive the images generated by the sensor processors; determine a position of the respective sensor with respect to one or more stars using a stored star catalog and the received images; and output the determined position. - View Dependent Claims (20)
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21. A method for modeling atmospheric distortion, said method comprising:
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receiving radiation by a sensor at a first wavelength from a stellar object; determining a first position of the stellar object relative to the sensor receiving the radiation at the first wavelength; receiving radiation by the sensor at a second wavelength from the stellar object; determining a second position of the stellar object relative to the sensor; determining a distortion effect of the an atmosphere between the stellar object and the sensor using the first position and the second position; and outputting the determined distortion effect.
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22. A method for correcting distortion in sensor images, said method comprising:
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receiving a first image generated using radiation received by a sensor through a medium at a first wavelength; receiving a second image generated using radiation received by the sensor through the medium at a second wavelength; determining an amount of distortion in the medium using at least one of the first image and the second image; and correcting the first image using the determined distortion.
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Specification