Dispersive chirp combining spread-spectrum system

Dispersive chirp combining spread-spectrum system

Chirp (linear FM) filters are dispersive in nature; that is, the time delay of the filter varies with frequency. This dispersive nature can be exploited to perform dispersive combining of the resolved multipath components. Frequency shiftings are performed on the received multipath signals to compen...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Suhartanto, C.H., McGillem, C.D.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Chirp
Delay effects
Dispersion
Diversity reception
Fading
Frequency
Matched filters
Nonlinear filters
Spread spectrum communication
Transmitters
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Beschreibung
Zusammenfassung:Chirp (linear FM) filters are dispersive in nature; that is, the time delay of the filter varies with frequency. This dispersive nature can be exploited to perform dispersive combining of the resolved multipath components. Frequency shiftings are performed on the received multipath signals to compensate for the path delays. The proper values for the frequency shifts are obtained via a multipath tracking loop. The performance of the dispersive Chirp combining system in Yegani-McGillem channel models is evaluated via computer simulation.< >
DOI:10.1109/ICCS.1992.255000