THREE FREQUENCY DIFFERENCE OMEGA

R. G. Brown and R. L. Van Allen

Peer Reviewed

Abstract: A formula is presented for computing group delay synthetically from phase measurements made at three frequencies. Wave theory indicates that the group delay calculated at the appropriate frequency should be relatively insensitive to the usual diurnal phase variations. This is demonstrated with actual three-frequency phase data for the Trinidad-North Dakota path. The amount of data analyzed is too small to make positive comparisons with composite and other OMEGA configurations, but it is cautiously speculated that the resultant system accuracy using a calculated group delay would be comparable to composite OMEGA.
Published in: NAVIGATION, Journal of the Institute of Navigation, Volume 24, Number 3
Pages: 206 - 215
Cite this article: Brown, R. G., Van Allen, R. L., "THREE FREQUENCY DIFFERENCE OMEGA", NAVIGATION, Journal of The Institute of Navigation, Vol. 24, No. 3, Fall 1977, pp. 206-215.
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