ACTIVE IMAGING USING SATELLITE COMMUNICATION SYSTEM
First Claim
1. An active imaging system using communication satellites, comprising:
- a transmitter emitting a time-synchronized signal directed to a target; and
a constellation of communication satellites receiving and time stamping the time-synchronized signal reflected from the target to form an active image of the target.
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Abstract
An active imaging system uses communication satellites to identify the location and physical attributes of a target. A transmitter emits a time-synchronized signal directed to a target. The transmitter radiates L-band RF signals. The transmitter can be positioned on an airborne or ground platform. A constellation of communication satellites receives and time stamps the time-synchronized signal reflected from the target to form an active image of the target. The constellation of communication satellites have multiple roles other than active imaging, such as providing voice and data communications. The time-synchronized signal reflected from the target can be received by multiple satellites within the constellation of communication satellites or by multiple antenna disposed on one satellite within the constellation of communication satellites.
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Citations
28 Claims
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1. An active imaging system using communication satellites, comprising:
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a transmitter emitting a time-synchronized signal directed to a target; and a constellation of communication satellites receiving and time stamping the time-synchronized signal reflected from the target to form an active image of the target. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An active imaging system using a plurality of satellites, comprising:
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a transmitter emitting a signal directed to a target; and a plurality of satellites receiving the signal reflected from the target with temporal data to form an active image of the target. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method of active imaging of a target using communication satellites, comprising:
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emitting a time-synchronized signal from a transmitter directed to a target; and receiving and time stamping the time-synchronized signal reflected from the target through a constellation of communication satellites to form an active image of the target. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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25. An active imaging system using a plurality of satellites, comprising:
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a transmitter disposed on a platform and emitting a signal directed to a target; and a plurality of satellites receiving the signal reflected from the target with temporal data to form an active image of the target with sufficient resolution to identify physical attributes and location of the target. - View Dependent Claims (26, 27, 28)
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Specification