RANGE ESTIMATION FROM WAVE-FRONT CURVATURE

Authors
  1. Webber, R.V.
Corporate Authors
Communications Research Centre, Ottawa ONT (CAN)
Abstract
The computation of the range of a signal from its wavefront curvature has been investigated. Some success was obtained by fitting a truncated power series to phase data which was taken by a linear array of antenna. In simulated experiments the effect of noise in the data was investigated extensively. For typical data obtained with the Communications Research Centre HFDF 1.2 km array, one should be able to make useful estimates of range for distances up to about 100 kilometers. In a field experiment the ground wave was used to estimate ranges of up to 111 kilometers. The bias and the rms deviation from the mean range were low for the near transmission sites but were up to 33% and 45% respectively, for the more remote sites.
Report Number
1322 —
Date of publication
15 Mar 1979
Number of Pages
31
DSTKIM No
80-00723
CANDIS No
88424
Format(s):
Hardcopy;Originator's fiche received by DSIS

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