Title :
Correlation of long sequences by a surface-acoustic-wave convolver, with application to spread-spectrum communication
Author :
Morgan, D.P. ; Hannah, J.M.
Author_Institution :
University of Edinburgh, Department of Electrical Engineering, Edinburgh, UK
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 ¿s 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 :
acoustic surface wave devices; correlation methods; signal processing; telecommunication systems; acoustic surface wave convolver; biphase coded waveforms; long sequence correlation; spread spectrum communication;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19750148
