ESTIMATION OF AZIMUTHAL AND VERTICAL ARRIVAL ANGLES AT A ROTATABLE HORIZONTAL LINE ARRAY

Authors
  1. Trenholm, B.A.
  2. Theriault, J.A.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
A Horizontal Line Array (HLA) receiver is subject to left-right bearing ambiguity. It is also susceptible to bearing bias caused by non-zero vertical arrival angles. The true bearing angle and the vertical arrival angle may both be estimated if a second observation is made, with the HLA rotated to a new orientation. A closed-form solution is presented for the case of stationary source and receiver. For small observation errors, the resulting errors in the estimated angles can also be expressed in closed form.
Report Number
DREA-87-101 —
Date of publication
15 Jul 1987
Number of Pages
55
DSTKIM No
88-00097
CANDIS No
106747
Format(s):
Hardcopy;Originator's fiche received by DSIS

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