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Spread spectrum communication link using surface wave devicesA fast lock-up, 8-MHz bandwidth 8,000 bit per second data rate spread spectrum communication link breadboard is described that is implemented using surface wave devices as the primary signal generators and signal processing elements. It uses surface wave tapped delay lines in the transmitter to generate the signals and in the receiver to detect them. The breadboard provides a measured processing gain for Gaussian noise of 31.5 dB which is within one dB of the theoretical optimum. This development demonstrates that spread spectrum receivers implemented with surface wave devices have sensitivities and complexities comparable to those of serial correlation receivers, but synchronization search times which are two to three orders of magnitude smaller.
Document ID
19720010507
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Hunsinger, B. J. (Magnavox Co. Fort Wayne, IN, United States)
Fugit, B. B. (Magnavox Co. Fort Wayne, IN, United States)
Date Acquired
August 6, 2013
Publication Date
November 1, 1971
Subject Category
Communications
Report/Patent Number
ASW-354
NASA-CR-122344
Accession Number
72N18157
Funding Number(s)
CONTRACT_GRANT: NAS5-20198
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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