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Partitioned-Interval Quantum Optical Communications ReceiverThe proposed quantum receiver in this innovation partitions each binary signal interval into two unequal segments: a short "pre-measurement" segment in the beginning of the symbol interval used to make an initial guess with better probability than 50/50 guessing, and a much longer segment used to make the high-sensitivity signal detection via field-cancellation and photon-counting detection. It was found that by assigning as little as 10% of the total signal energy to the pre-measurement segment, the initial 50/50 guess can be improved to about 70/30, using the best available measurements such as classical coherent or "optimized Kennedy" detection.
Document ID
20130011245
Acquisition Source
Jet Propulsion Laboratory
Document Type
Other - NASA Tech Brief
Authors
Vilnrotter, Victor A.
(California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 27, 2013
Publication Date
March 1, 2013
Publication Information
Publication: NASA Tech Briefs, March 2013
Subject Category
Communications And Radar
Report/Patent Number
NPO-48496
Distribution Limits
Public
Copyright
Public Use Permitted.
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