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Showing papers on "Turn-by-turn navigation published in 1948"


Book ChapterDOI
J.A. Pierce1
TL;DR: Radar is the most discussed series of electronic devices to come out of the recent war and the omnirange, which operates in the very high frequency region, is one of the azimuth-determining systems.
Abstract: Publisher Summary This chapter gives a detail about the various electronic aids to navigation. In navigation out of sight of landmarks the navigator customarily finds his position, usually in terms of latitude and longitude or distance and direction from a known point, and consults a chart to find the relation between his position and his destination. The automatic devices simply extend the control exercised by the navigator in time or space. The Orfordness beacon enjoys the elimination of quadrantal errors, but requires some measurement by the navigator. Radar is the most discussed series of electronic devices to come out of the recent war. The techniques are discussed in this chapter and the applications to navigation are limited, primarily by the relatively short ranges available except for observation of or from very high flying aircraft. The omnirange, which operates in the very high frequency region, is one of the azimuth-determining systems. Systems using a combination of methods, such as the omnidirectional range with distance-measuring equipment, must be examined individually.

3 citations