NDLI: Real-time edge-enhanced optical correlator (Document No: 19930005216)

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Real-time edge-enhanced optical correlator (Document No: 19930005216)

Content Provider	NASA Technical Reports Server (NTRS)
Copyright Year	1992
Description	The performance of five symbol lock detectors are compared. They are the square-law detector with overlapping (SQOD) and non-overlapping (SQNOD) integrators, the absolute value detectors with overlapping and non-overlapping (AVNOD) integrators and the signal power estimator detector (SPED). The analysis considers various scenarios when the observation interval is much larger or equal to the symbol synchronizer loop bandwidth, which has not been considered in previous analyses. Also, the case of threshold setting in the absence of signal is considered. It is shown that the SQOD outperforms all others when the threshold is set in the presence of signal, independent of the relationship between loop bandwidth and observation period. On the other hand, the SPED outperforms all others when the threshold is set in the presence of noise only.
File Size	1414652
Page Count	51
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19930005216
Archival Resource Key	ark:/13960/t5n925g46
Language	English
Publisher Date	1992-08-04
Access Restriction	Open
Subject Keyword	Optics Deep Space Network Digital Systems Phase Locked Systems Radio Receivers Integrators Optical Correlators Synchronizers Real Time Operation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Patent

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