High-speed frequency synthesizer for spread spectrum communication systems

Author

Chren, William A., Jr.

Author_Institution

Grand Valley State Univ., Grand Rapids, MI, USA

fYear

1994

fDate

10-12 May 1994

Firstpage

275

Lastpage

282

Abstract

A high-speed direct digital frequency synthesizer has been designed for ultra-fast frequency-hopped spread spectrum applications. It is called the low-latency residue synthesizer (LLRS) and exhibits frequency switching times which are reduced by more than 50% below previously published designs. The switching speed advantage is made possible by the use of the residue number system and one-hot encoding of phase information. Pipeline lengths in the phase accumulator and other circuitry are thereby reduced significantly

Keywords

direct digital synthesis; encoding; frequency hop communication; residue number systems; spread spectrum communication; frequency switching times; high-speed direct digital frequency synthesizer; low-latency residue synthesizer; one-hot encoding; phase accumulator; phase information; pipeline lengths; spread spectrum communication systems; switching speed; ultra-fast frequency-hopped spread spectrum; Adders; Circuits; Clocks; Communication switching; Delay; Encoding; Frequency synthesizers; Pipelines; Read only memory; Spread spectrum communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Tactical Communications Conference, 1994. Vol. 1. Digital Technology for the Tactical Communicator., Proceedings of the 1994

Conference_Location

Fort Wayne, IN

Print_ISBN

0-7803-2004-2

Type

conf

DOI

10.1109/TCC.1994.472122

Filename

472122