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Estimating true altitude of a track from local 3-D Cartesian coordinates of a radar

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2 Author(s)
J. J. Sudano ; Gov. Electron. Syst., Moorestown, NJ, USA ; M. Marietta

Estimating the true altitude of a track from 3-dimensional Cartesian coordinates of a radar has always been a challenge. In the early days of radar a 4/3 earth-radius refraction model algorithm was sufficient to describe the altitude of a track, since planes didn't fly too high and radars had less power and range. Many present radars track objects outside the limits of this simple model and better estimates are needed. This article outlines a series of simple algorithm approximations that are used to compute the altitude of a track. Altitude estimation errors are more than a factor of 10 smaller than the 4/3 earth model. The algorithm approximations for computing the altitude are relatively simple and very efficient to code

Published in:

Aerospace and Electronics Conference, 1994. NAECON 1994., Proceedings of the IEEE 1994 National

Date of Conference:

23-27 May 1994