Effect of PLL frequency synthesizer in FSK frequency-hopped communications

Synthesizer transient and spur effects in an frequency-shift-keying frequency-hopped system are investigated. Models for transient analysis are developed, and resulting degradations to performance are computed. Compensation methods, such as ping-ponging multiple synthesizers and gating symbol detect...

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Bibliographic Details
Published in:IEEE transactions on communications 1989-03, Vol.37 (3), p.268-276
Main Authors: Alexovich, J.R., Gagliardi, R.M.
Format: Article
Language:English
Subjects:
Additive white noise
Applied sciences
Degradation
Demodulation
Detectors
Equipments and installations
Exact sciences and technology
Frequency shift keying
Frequency synthesizers
Phase locked loops
Radiocommunications
Rician channels
Spread spectrum communication
Telecommunications
Telecommunications and information theory
Transmitters
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Summary:Synthesizer transient and spur effects in an frequency-shift-keying frequency-hopped system are investigated. Models for transient analysis are developed, and resulting degradations to performance are computed. Compensation methods, such as ping-ponging multiple synthesizers and gating symbol detectors, are considered. A spur analysis is presented, and the overall output effects on hopping spectrum and demodulation are shown. Methods to bound degradation in terms of number and strength of spur lines are presented.< >
ISSN:0090-6778
1558-0857
DOI:10.1109/26.20101