NTL-AVIATION-AVIATION;NTL-AVIATION-Air Traffic Control;NTL-AVIATION-Aviation Planning and Policy;
Abstract:
This memorandum addresses a fundamental function in surveillance and navigation analysis —
quantifying the geometry of two or more locations relative to each other and to a spherical earth. Here, “geometry” refers to: (a) points (idealized locations); (b) paths between points; and (c) distances and angles that quantify paths. Points represent locations of either vehicles or navigation/surveillance sensors. Paths constitute trajectories followed by vehicles or sensor signals. Distances are the lengths of paths/trajectories that are either straight lines or follow the earth’s surface. Angles between paths may be measured on a plane or a spherical surface.
This document addresses a basic function of aircraft (and other vehicle) surveillance and navi-gation systems analyses — quantifying the geometric r...
The global transition to communications, navigation, surveillance / air traffic management (CNS/ATM) technology is moving forward at an increasing pac...
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United States Department of Transportation
[PDF-3.34 MB]
