Results 71 to 80 of about 353 (143)

Research on orthogonal multi-carrier underwater acoustic communication system based on fractional Fourier transform

open access: yesTongxin xuebao, 2012
Aimed at the traditional OFDM communication system fails when the channel was frequency-selective,rapidly fading and had the Doppler effects,resulting in inter-carrier interference,a orthogonal multi-carrier system for underwater acoustic communication ...
Yi-lin WANG   +4 more
doaj   +2 more sources

Miniature Ultrasonic Spatial Localization Module in the Lightweight Interactive. [PDF]

open access: yesMicromachines (Basel), 2023
Li L   +5 more
europepmc   +1 more source

Multi-service transmission method based on multi-chirp-rate CSS

open access: yesTongxin xuebao, 2011
A novel multi-services transmission scheme based on multi-chirp-rate CSS was proposed,which provided dif-ferent quality of transmission to services on the physical layer.Using fractional fourier transform(FrFT),signals of dif-ferent services could be ...
ZHAO Qi-ming1   +2 more
doaj   +2 more sources

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