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» Multiband OFDM for Covert Acoustic Communications
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JSAC
2008
92views more  JSAC 2008»
13 years 4 months ago
Multiband OFDM for Covert Acoustic Communications
A multiband OFDM transmitter and receiver are presented for underwater communications at low SNR. Compared with a single-band OFDM scheme, the multiband approach leads to a conside...
Geert Leus, Paul A. van Walree
JSAC
2006
90views more  JSAC 2006»
13 years 4 months ago
Multicode ultra-wideband scheme using chirp waveforms
We propose an ultra-wideband (UWB) scheme that employs chirp waveforms. Signals satisfying the Federal Communications Commission (FCC) requirements for UWB applications are formed ...
Huaping Liu