In:
Journal of the Korea Institute of Military Science and Technology, The Korea Institute of Military Science and Technology, Vol. 25, No. 2 ( 2022-04-05), p. 117-124
Abstract:
Single-ring circular array antennas can be applied to direction finding systems in order to use nose-section in other purposes, and the interferometry is a proper direction finding method to those systems. We usually make the interferometer baseline long enough to achieve good angular accuracy. However, an interferometer with baseline longer than a half-wavelength has the ambiguity problem. In this paper, we present a novel method for solving the ambiguity problem in interferometry systems. This technique is based on the amplitude comparison method and the space division table, and it can place a target within the angular region in which the ambiguity problem does not occur by roughly estimating direction-of-arrival. The Monte Carlo simulation results show that proposed method can effectively remove the ambiguity problem in the system.
Type of Medium:
Online Resource
ISSN:
2636-0640
DOI:
10.9766/KIMST.2022.25.2.117
Language:
English
Publisher:
The Korea Institute of Military Science and Technology
Publication Date:
2022
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