Methods, systems, and computer readable media for providing smart underwater free space optical communications
First Claim
1. A system for smart underwater free space optical communications, the system comprising:
- a receiver including;
an optical detector array for detecting incident light under water;
a compound lens array located optically in front of the optical detector array, wherein the compound lens array includes lenses that steer incident light arriving at different angles to different portions of the optical detector array, wherein the compound lens array comprises a truncated hexagonal pyramid having a lens on each face other than a base; and
a controller for processing signals generated by the optical detector array based on the incident light and for controlling an aspect of the underwater communications based on the steered incident light detected by the detector array.
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Accused Products
Abstract
Methods, systems, and computer readable for providing smart underwater free space optical communications are provided. According to one aspect, a system for smart underwater free space optical communications is provided. The system includes a receiver. The receiver includes an optical detector array for detecting incident light under water. The receiver further includes a compound lens array located optically in front of the optical detector. The compound lens array includes lenses that steer incident light arriving at different angles to different portions of the optical detector array. A controller processes signals generated by the optical detector based on the incident light and controls an aspect of the underwater communications based on the steered incident light detected by the detector array. Components of the controller may include a backscatter estimator and an angle of arrival estimator for estimating water quality obtained from backscattered light and an angle of arrival of incident light, respectively.
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Citations
22 Claims
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1. A system for smart underwater free space optical communications, the system comprising:
a receiver including; an optical detector array for detecting incident light under water; a compound lens array located optically in front of the optical detector array, wherein the compound lens array includes lenses that steer incident light arriving at different angles to different portions of the optical detector array, wherein the compound lens array comprises a truncated hexagonal pyramid having a lens on each face other than a base; and a controller for processing signals generated by the optical detector array based on the incident light and for controlling an aspect of the underwater communications based on the steered incident light detected by the detector array. - View Dependent Claims (2, 3, 4, 5, 8, 9, 10, 11)
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6. A system for smart underwater free space optical communications, the system comprising:
a receiver including; an optical detector array for detecting incident light under water; a compound lens array located optically in front of the optical detector array, wherein the compound lens array includes lenses that steer incident light arriving at different angles to different portions of the optical detector array; and a controller for processing signals generated by the optical detector array based on the incident light and for controlling an aspect of the underwater communications based on the steered incident light detected by the detector array; wherein the controller is configured to adjust a parameter of transmitted optical signals based on the signals generated by the detector and wherein the controller includes a backscatter estimator for estimating water quality based on backscattered light and for adjusting a transmit parameter based on the estimated water quality. - View Dependent Claims (7)
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12. A method for smart underwater optical communications, the method comprising:
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in a receiver, detecting, using an optical detector array, incident light arriving from an underwater source; steering, using a compound lens array located in front of the optical detector array, incident light arriving at different angles to different portions of the optical detector array, wherein the compound lens array comprises a truncated hexagonal pyramid having a lens on each face other than a base; and processing signals generated by the optical detector array based on the incident light and controlling an aspect of the underwater communications based on the steered light detected by the detector array. - View Dependent Claims (13, 14, 15, 16, 19, 20, 21)
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17. A method for smart underwater optical communications, the method comprising:
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in a receiver, detecting, using an optical detector array, incident light arriving from an underwater source; steering, using a compound lens array located in front of the optical detector array, incident light arriving at different angles to different portions of the optical detector array; and processing signals generated by the optical detector array based on the incident light and controlling an aspect of the underwater communications based on the steered light detected by the detector array; comprising, in a transmitter, adjusting a parameter of transmitted optical signals based on the signals generated by the detector and wherein adjusting a parameter of transmitted optical signals comprises estimating water quality based on backscattered light and adjusting the parameter based on the estimated water quality. - View Dependent Claims (18)
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22. A non-transitory computer readable medium having stored thereon executable instructions for controlling the processor of a computer to perform steps comprising:
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in a receiver, detecting, using an optical detector array, incident light under water; steering, using a compound lens array located optically in front of the optical detector array, incident light arriving at different angles to different portions of the optical detector array, wherein the compound lens array comprises a truncated hexagonal pyramid haying a lens on each face other than a base; and processing signals generated by the optical detector array based on the incident light and controlling an aspect of underwater communications based on the steered light detected by the detector array.
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Specification