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The Practical Combination of Air Navigation Techniques

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2 Author(s)
Galbraith, H.J. ; Weapons Guidance Laboratory, Wright Air Development Center, Ohio. ; Braverman, N.

Neither airborne self-contained nor ground-based air-navigation systems can by themselves completely meet the requirements of present day aircraft for both accuracy and continuity or positional and steering data. It is shown how dead-reckoning, providing continuity and reliability through the use of air-derived acceleration or velocity data, combined with intermittent ``fixing'' by employment of accurate position data obtained through the use of ground and stellar referenced sources, can increase operational capability without ``pressing the state of the art'' in any of the components of a system. Methods of inserting position fixes and of instrumenting the associated wind-computation and wind-memory functions are described and system errors are analyzed.

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Aeronautical and Navigational Electronics, IRE Transactions on  (Volume:ANE-3 ,  Issue: 1 )