Spread-spectrum synchronizer using a SAW convolver and recirculation loop

Autor:	D.P. Morgan, J.M. Hannah, J.H. Collins
Rok vydání:	1976
Předmět:	Spread spectrum Physics Synchronizer Matched filter Acoustics Bandwidth (signal processing) Waveform Acquisition time Acoustic wave Direct-sequence spread spectrum Electrical and Electronic Engineering
Zdroj:	Proceedings of the IEEE. 64:751-753
ISSN:	0018-9219
Popis:	Segments of a long biphase coded waveform were correlated in a degenerate acoustic convolver, and the resulting correlation peaks were summed in a SAW recirculation loop. Using a 9 Mchip/s wave-form, 730 µs of waveform was correlated, giving an experimental SNR increase of 40 dB. This system can be used to reduce substantially the acquisition time for synchronization of a direct sequence spread-spectrum communication receiver.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f3a0d1b37446d6392cd1370a9581126f https://doi.org/10.1109/proc.1976.10204 Zobrazit plný text záznamu