Method and system for robust symmetrical number system photonic direction finding

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Author
Pace, Phillip E.
Tedesso, Thomas W.
Calusdian, James
Date
2017-03-07Metadata
Show full item recordAbstract
A four-element wideband photonic DF system with robust
symmetrical number system preprocessing utilizes dual
electrode Mach-Zehnder modulators (DE-MZMs) to conduct
phase detection for direct wideband direction finding
(DF) of RF signals, such as microwave signals, in which the
normalized magnitude of the output signal phase detector
circuit is equal to lsin(cp/2)1 where cjJ is the phase difference
between the plane waves arriving at the reference and
measurement antennas of a linear DF array. The method and
system allow fine angular resolution using a much smaller
array size than is typically required for linear arrays employing
super-resolution signal processing techniques.
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Patent
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
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