Scientific and Technical Aerospace Reports Volume 39 April 6, 2001

20010023557 North Dakota State Univ., Upper Great Plains Transportation Inst., Fargo, ND USA
TEL8 Telecommunications Network: A Pooled Fund Study for Transportation Videoconferencing Final Report, Jul. 1994
- Jun. 00
Bensen, Douglas E., North Dakota State Univ., USA; Sep. 2000; 158p; In English; See also PB99-128522 and PB99-151433
Report No.(s): PB2001-102436; No Copyright; Avail: CASI; A02, Microfiche; A08, Hardcopy
The document reports the research efforts and results of a telecommunication network dedicated to transportation. These
efforts include the establishment of a satellite-based video conference network, development of TEL8 programming and training,
the video conference delivery of university graduate level transportation courses to DOTs and the creations of the network’s program
director and its governing organizational structure. The research results include the programming, training, educational and
communications activities developed by the network, an evaluation of the technological and organizational changes and expanded
video conferencing at the networks DOTs.
NTIS
Video Conferencing; Communication Networks; Transportation
20010024034 Army Aeromedical Research Lab., Fort Rucker, AL USA
Communications Effectiveness when Using the Communications Earplug or Expandable-Foam Earplug with the
HGU-56/P Aviator Helmet Final Report
Ahroon, William A.; Gordon, Elmaree; Mozo, Ben T.; Katz, Lawrence C.; Aug. 2000; 16p; In English
Report No.(s): AD-A384639; USAARL-2000-27; No Copyright; Avail: CASI; A03, Hardcopy; A01, Microfiche
The ability of rotary-wing aircrew to utilize cockpit communications to successfully coordinate missions is impaired by the
high noise inherent in the aviation environment and by hearing protection strategies designed to protect the aviators from noise-induced
hearing loss. The use of the communications earplug in place of an expandable-foam earplug when using double-protection
(sound-attenuating helmet and earplugs) significantly reduces the number of events classified by the CIRCLE measurement technique
in the sub-code associated with pilots requesting that a communication be repeated. The sub-codes associated with missed
transmissions (i.e., repeated verbalizations caused by an assumed missed transmission) and improper responses (where the
response was inappropriate to the message received) did not show statistical significance. However, the relatively low frequency
of occurrence of these sub-codes may limit the application of these two sub-coded behaviors.
DTIC
Hearing; Helmets; Ear Protectors; Flight Crews
20010024040 Georgia Inst. of Tech., School of Electrical and Computer Engineering, Atlanta, GA USA
Multidimensional Digital Signal Processing Optical Devices for Information Processing and Electromagnetic Analysis
and Measurement Final Report, 15 Apr 1993-31 May 1996
Schafer, Ronald W., Georgia Inst. of Tech., USA; Jul. 25, 1996; 21p; In English
Contract(s)/Grant(s): DAAH04-93-G-0027
Report No.(s): AD-A384663; ARO-30865.39-EL-JSEP; No Copyright; Avail: CASI; A01, Microfiche; A03, Hardcopy
This is the final report on research carried out under this contract. There has been significant progress in the research areas
of multidimensional digital signal processing and modeling, iterated function systems and stereo image processing, morphological
systems for multidimensional signal processing, time-frequency-wavenumber representations, optical devices for information
processing, semiconductor quantum wave devices, electromagnetic measurements in the time and frequency domains and in
microwave holography in near- and far-field measurements. This report lists degrees awarded and publications for the three-year
contract period. Specific research results are contained in the Annual Reports submitted prior to this final report.
DTIC
Signal Processing; Quantum Electronics; Electromagnetic Measurement; Optical Equipment; Image Processing
20010025774 Defence Research Establishment Ottawa, Ottawa, Ontario Canada
Further Examination of Iridium Satellite Phone and Pager System for Military Use
Tom, Caroline; Lambert, James D.; Jan. 2000; 36p; In English
Contract(s)/Grant(s): Proj. SCA14
Report No.(s): AD-A385399; DREO-TM-2000-084; No Copyright; Avail: CASI; A01, Microfiche; A03, Hardcopy
The Iridium satellite-based personal communications system (PCS) has been offering voice and messaging services since
November 1998 and March 1999 respectively. With its interconnected constellation of 66 low earth orbit (LEO) satellites, Iridium
is capable of providing continuous communications anywhere in the world. This Technical Memorandum describes further evaluations
of the Iridium system carried out by the Military Satellite Communications group at Defence Research Establishment
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