Title :
Selective Correlation Detection of Photonically Generated Ultrawideband RF Signals
Author :
Lin, Ingrid S. ; Weiner, Andrew M.
Author_Institution :
Electr. & Comput. Eng. Dept., Purdue Univ., West Lafayette, IN
Abstract :
We demonstrate hardware auto/cross-correlation measurements of photonically generated ultrawideband (UWB) RF burst waveforms in the 3-10 GHz range. Full delay dependent correlation studies with matched waveform pairs reveal correlation peaks ~15 dB above those obtained with nonmatching sets of waveforms. The possibility of real-time correlation detection is also explored, as are correlation measurements of waveforms that are transmitted over a short line-of-sight wireless link. With waveforms modified to precompensate for antenna dispersion, 7 dB correlation contrast between matched and nonmatched waveform pairs is obtained. Our results suggest hardware correlation detection as a possibility for processing of arbitrary waveforms in an Ultra-wideband (UWB) receiver.
Keywords :
optical correlation; optical links; optical receivers; ultra wideband communication; antenna dispersion; hardware correlation detection; matched waveform pairs; photonically generated ultrawideband RF burst waveforms; real-time correlation detection; ultrawideband receiver; wireless link; Autocorrelation; Bandwidth; Hardware; Optical pulse shaping; Optical receivers; Optical transmitters; Propagation delay; Radio frequency; Signal generators; Ultra wideband technology; Broadband correlation; optical pulse shaping; ultrawideband (UWB);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2008.927174
