Method and apparatus for protected communications to high altitude aircraft
First Claim
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1. A method for communicating between an aircraft and a spacecraft in outer space, said method comprising:
- flying the aircraft in earth'"'"'s atmosphere at an altitude above 40,000 feet from the earth; and
transmitting a signal from the aircraft to the spacecraft having a frequency in a range of 50-70 GHz, wherein the frequency of the signal is selected to be a frequency that is within a lobe between peaks in a plot defining attenuation of the signal in the atmosphere relative to frequency.
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Abstract
A method for protecting communications between an aircraft and a spacecraft in outer space including flying the aircraft in the earth'"'"'s atmosphere at an altitude above 40,000 feet from the earth, and preferably above 50,000 feet, and transmitting a signal from the aircraft to the spacecraft having a frequency within a range of 50-70 GHz. The method includes selecting the frequency of the signal based on the altitude of the aircraft and the elevation angle between the spacecraft the aircraft.
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Citations
18 Claims
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1. A method for communicating between an aircraft and a spacecraft in outer space, said method comprising:
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flying the aircraft in earth'"'"'s atmosphere at an altitude above 40,000 feet from the earth; and transmitting a signal from the aircraft to the spacecraft having a frequency in a range of 50-70 GHz, wherein the frequency of the signal is selected to be a frequency that is within a lobe between peaks in a plot defining attenuation of the signal in the atmosphere relative to frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for communicating between an aircraft and a satellite in earth orbit that provides anti-jamming capabilities, said method comprising:
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flying the aircraft in earth'"'"'s atmosphere at an altitude above 50,000 feet from the earth; and transmitting a signal from the aircraft to the satellite having a frequency in the range of 50-70 GHz, wherein transmitting the signal includes selecting the frequency of the signal based on an elevation angle between the satellite and the aircraft. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method for communicating between an aircraft and a spacecraft in outer space, said method comprising:
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flying the aircraft in earth'"'"'s atmosphere at an altitude above 40,000 feet from the earth; and transmitting a signal from the aircraft to the spacecraft having a frequency in a range of 50-70 GHz, wherein transmitting the signal includes selecting the frequency of the signal depending on the altitude of the aircraft and an elevation angle between the spacecraft and the aircraft. - View Dependent Claims (15, 16, 17, 18)
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Specification