title: Transarctic acoustic telemetry.
abstract: On April 9 and 13, 1999, two Arctic Climate Observation Using Underwater Sound tomography signals were transmitted from a 20.5-Hz acoustic source moored at the Franz Victoria Strait to an eight-element, 525-m vertical array at ice camp APLIS in the Chukchi Sea at a distance of ∼2720 km. The transmitted signal was a 20-min long, 255-digit m-sequence that can be treated as a binary-phase shift-keying communication signal with a data rate of 2 bits/s. The almost error-free performance using either spatial diversity (three elements) for a single transmission or temporal diversity (two transmissions) with a single element demonstrates the feasibility of ice-covered trans-Arctic acoustic communications.
authors.affiliation: Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093-0238.
authors.forename: H C
authors.initials: HC
authors.lastname: Song
authors.affiliation: Leidos, Inc., 4001 North Fairfax Drive, Suite 675, Arlington, Virginia 22203.
authors.forename: Peter N
authors.initials: PN
authors.lastname: Mikhalevsky
authors.affiliation: Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139.
authors.forename: Arthur B
authors.initials: AB
authors.lastname: Baggeroer