Theory of angle estimation using a multiarm spiral antenna

An analysis of angle estimation using a single aperture, multimode spiral is presented. It is demonstrated that in addition to the classical Comparison method, modern parameter estimation techniques such as Multiple Signal Classification (MUSIC) and MLM (Maximum Likelihood Method) can be applied to...

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Bibliographic Details
Published in:IEEE transactions on aerospace and electronic systems 2001-01, Vol.37 (1), p.123-133
Main Authors: Penno, R.P., Pasala, K.M.
Format: Article
Language:English
Subjects:
Aircraft components
Antenna theory
Antennas
Aperture antennas
Boresights
Computer simulation
Costs
Electronic systems
Estimation theory
Maximum likelihood estimation
Multiple signal classification
Parameter estimation
Phase estimation
Receivers
Signal classification
Spiral antennas
Spirals
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Summary:An analysis of angle estimation using a single aperture, multimode spiral is presented. It is demonstrated that in addition to the classical Comparison method, modern parameter estimation techniques such as Multiple Signal Classification (MUSIC) and MLM (Maximum Likelihood Method) can be applied to multimode antenna technology for angle estimation. These techniques, coupled with the advent of digital receivers make possible the elimination of the mode-forming network. Results of computer simulations show that these new approaches give lower bias and variance, and also extend coverage toward boresight compared with the traditional Comparison method.
ISSN:0018-9251
1557-9603
DOI:10.1109/7.913672