Showing papers on "Performance-based navigation published in 1968"
TL;DR: The ever increasing air traffic volume on high density international routes indicates the need for increased air space capacity, which involves reduction in air traffic separation standards, and improved navigation accuracy must be achieved.
Abstract: The ever increasing air traffic volume on high density international routes indicates the need for increased air space capacity. This involves reduction in air traffic separation standards. Consequently, improved navigation accuracy must be achieved. The examination of air carrier over-ocean navigation practices discloses a wide variety of navigation concepts. For position fixing, general limitations of sensor data acquisition may be due to inadequate operator time availability, unfavorable environmental conditions, or by geographical limits of facility coverage. Techniques of sensor data acquisition and processing and the required levels of integration are discussed.
4 citations
TL;DR: In this article, the authors present preliminary conclusions about navigation requirements for supersonic aircraft, in particular those which relate to management of the aircraft along its vertical flight path, based on an evaluation of some 200 computer-simulated flights of the mach 2 Concorde.
Abstract: This paper presents some preliminary conclusions about navigation requirements for supersonic aircraft, in particular those which relate to management of the aircraft along its vertical flight path. The conclusions are based on an evaluation of some 200 computer-simulated flights of the mach 2 Concorde. The simulation contained models of real-world atmospheres for polar, temperate and tropical latitudes taken from actual upper-air observations and integrated over selected great circle routes used in the study. The computer programme was designed to permit three kinds of flight schedule: operation according to the manufacturer's recommended mach-altitude profile, operation with respect to a set of arbitrary A.T.C. profiles, and operation along an optimum-energy profile. The results permit us to suggest objectively, performance capabilities, airspace requirements, and limiting conditions which are essential factors in specifying the vertical requirements.
1 citations
TL;DR: In this paper, the authors discuss spectrum occupancy, satellite power, lane ambiguities and computational procedures for a navigation satellite system designed for ATC without requirement for onboard transmitter, discussing spectrum occupancy and satellite power.
Abstract: Navigation satellites system designed for ATC without requirement for onboard transmitter, discussing spectrum occupancy, satellite power, lane ambiguities and computational procedures
1 citations
TL;DR: In this article, the authors discuss optimum navigation and guidance mechanisms integration goal for a transport integrated avionics system technology requirements research program, discussing optimum navigation, guidance and control mechanisms integration.
Abstract: Supersonic transport integrated avionics system technology requirements research program, discussing optimum navigation and guidance mechanisms integration goal