Correlation of long sequences by a surface-acoustic-wave convolver, with application to spread-spectrum communication
- 1 May 1975
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 11 (9) , 193-195
- https://doi.org/10.1049/el:19750148
Abstract
Segments of a long biphase coded waveform were correlated in a surface-acoustic-wave convolver, and the resulting correlation peaks were summed in a recirculation loop. With a 5 MHz chip rate, 250 μs of the waveform was integrated, giving an experimental s.n.r. improvement of 36 dB. The application to fast synchronisation in spread-spectrum communication is discussed.Keywords
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