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
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE