Neural network filter for adaptive noise substraction in optical heterodyne signals
First Claim
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1. A data processing unit for use in an optical heterodyne balanced receiver system to correct for non-ideal behavior and imperfections in said system, the data processing unit comprising:
- a central processing unit; and
a data storage unit connected to said central processing unit, said data storage unit having computer readable instructions stored thereon for causing said central processing unit to;
implement an artificial neural network in said data processing unit;
receive data to be corrected into one or more input nodes of said artificial neural network; and
correct said data for said non-ideal behavior and imperfections using said artificial neural network.
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Abstract
An artificial neural network is utilized as a filter in an optical heterodyne balanced receiver system. Such an artificial neural network can be adapted or trained to correct for non-ideal behavior and imperfections in the optical heterodyne system.
21 Citations
30 Claims
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1. A data processing unit for use in an optical heterodyne balanced receiver system to correct for non-ideal behavior and imperfections in said system, the data processing unit comprising:
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a central processing unit; and
a data storage unit connected to said central processing unit, said data storage unit having computer readable instructions stored thereon for causing said central processing unit to;
implement an artificial neural network in said data processing unit;
receive data to be corrected into one or more input nodes of said artificial neural network; and
correct said data for said non-ideal behavior and imperfections using said artificial neural network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of correcting for non-ideal behavior and imperfections in an optical heterodyne balanced receiver system, comprising:
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inputting data to be corrected to one or more input nodes of an artificial neural network; and
correcting said data for said non-ideal behavior and imperfections using said artificial neural network. - View Dependent Claims (12, 13, 14)
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15. An optical heterodyne system, comprising:
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an optical coupler;
detectors adapted to detect output signals from said optical coupler;
an artificial neural network configured to receive data representing one of said detected output signals; and
a data processing unit configured to subtract an output of said artificial neural network from data representing another one of said detected output signals to isolate an optical heterodyne signal. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification