Probing techniques and estimation processes for fine-time synchronization of FH systems

Five methods for estimating the time error in a frequency-hopped spread-spectrum (FHSS) system are analyzed and compared. These methods are based upon estimation of the second-order moments of the envelope-detected, match-filtered, received signal. The performance of these estimators is determined a...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	IEEE transactions on communications 1993-06, Vol.41 (6), p.962-974
Hauptverfasser:	Mason, L.J., Felstead, E.B.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Clocks Delay estimation Exact sciences and technology Frequency division multiaccess Frequency shift keying Frequency synchronization Matched filters Phase estimation Satellite telecommunications. Space telecommunications Satellites Signal processing Telecommunications Telecommunications and information theory Transmitters
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Five methods for estimating the time error in a frequency-hopped spread-spectrum (FHSS) system are analyzed and compared. These methods are based upon estimation of the second-order moments of the envelope-detected, match-filtered, received signal. The performance of these estimators is determined as a function of the Gaussian noise level and of the number of samples L used to form the estimate. The estimator mean and standard deviation are approximated by means of the central limit theorem. Solutions compare favorably with simulation results. Results for signal-to-noise ratios of 0, 5, and 10 dB and with L between 1 and 512 show that these estimators are superior to previously known methods.< >
ISSN:	0090-6778 1558-0857
DOI:	10.1109/26.231918