This report presents the results of an engineering study performed to investigate possible ways of extending the basic General Purpose Multiplex System (GPMS) architecture to handle the distribution of audio signals within Navy aircraft. The study is a systems engineering look at the problems of multiplexing the aircraft audio signals and at methods by which this multiplexing can be accomplished. The subjects covered are presented essentially in sequence according to the chronological order in which the study proceeded. The first discussion on the general characteristics of audio signals is followed by a description of the types of audio information found in Navy aircraft. The operational characteristics and requirements of audio distribution systems in typical Navy aircraft are then presented. The aircraft selected for this purpose are the A-7E (Corsair II) and the P-3A(Orion), which represent opposite ends of the spectrum with respect to aircraft size and audio requirements. The A-7E is a single-seat attack aircraft, while the P-3A is a four-engine ASW patrol aircraft with 14 flight crew stations. This report neither recommends nor rejects the implementation of audio multiplexing in Navy aircraft. A decision to multiplex or not to multiplex audio signals must ultimately be supported by analyses of cost-effectiveness, system space and weight considerations, and impact on mission effectiveness. Such analyses were not undertaken in this study.
The Extension of GPMS Architecture for the Distribution of Audio Signals within Navy Aircraft
1975
25 pages
Report
Keine Angabe
Englisch
Avionics , Common Carrier & Satellite , Signals , Multiplexing , Naval aircraft , Distribution , Audio frequency , Architecture , Speech , Jet aircraft , Patrol aircraft , Cost effectiveness , Weight , Space(Room) , Pulse code modulation , Terminals , Data transmission systems , A-7E aircraft , P-3A aircraft
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