Accession Number : ADD002477
Title : PSK-FSK Spread Spectrum Modulation/Demodulation.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Lowry,Ray B
Report Date : 28 Oct 1975
Pagination or Media Count : 10
Abstract : The patent relates to a spread spectrum link in which a transmitter section generates a different frequency signal for each unique data symbol accepted from the data source and phase shift modulates the frequency signals with a sequence of spread spectrum symbols. The frequency differences used are such that orthogonality is obtained over the receivers observation time of each spread spectrum symbol.
Descriptors : *Modems, *Patents, *Spread spectrum, Phase shift keyers, Frequency shift keyers, Synchronization(Electronics), Modulation, Demodulation
Subject Categories : Electrical and Electronic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE