Advanced communications satellite: the next generation of communications satellites.
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Convergence of calls as animals form social bonds, active compensation for noisy communication channels, and the evolution of vocal learning in mammals Tyack, Peter L. (2007-09-12)The classic evidence for vocal production learning involves imitation of novel, often anthropogenic sounds. Among mammals, this has been reported for African elephants, harbor seals, and dolphins. A broader taxonomic ...
Preisig, James C.; Deane, Grant B. (Acoustical Society of America, 2004-10)The forward scattering of acoustic signals off of shoaling surface gravity waves in the surf zone results in a time-varying channel impulse response that is characterized by intense, rapidly fluctuating arrivals. In some ...