NDLI: A hardware phase continuous frequency synthesiser for frequency hopping spread spectrum

Content Provider	IEEE Xplore Digital Library
Author	Cercas, F.A.B. Tomlinson, M. Pereira, J.M.N. Albuquerque, A.A.
Copyright Year	1989
Description	Author affiliation: IST, DEEC, Lisbon, Portugal (Cercas, F.A.B.)
Abstract	One of the major problems when implementing frequency-hopping spread-spectrum systems is to obtain an accurate, fast, and transient free frequency synthesizer. Direct digital synthesis meets these requirements with economy and simplicity. A brief analysis of a direct digital frequency synthesizer is made, indicating the several sources of noise that contribute to signal degradation, the frequency distribution of spurious response due to phase and amplitude quantization, and expressions for the signal-to-noise ratio. A hardware prototype was built (using emitter-coupled logic), and its performance is shown to be in good agreement with both theoretical and simulation results based on the computation of a fast Fourier transform.<>
Starting Page	403
Ending Page	406
File Size	399182
Page Count	4
File Format	PDF
DOI	10.1109/MELCON.1989.50066
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1989-04-11
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency synthesizers Hardware Signal to noise ratio Spread spectrum communication Signal synthesis Signal analysis Noise level Phase noise Degradation Quantization
Content Type	Text
Resource Type	Article

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A hardware phase continuous frequency synthesiser for frequency hopping spread spectrum