A Compact Direction-Finding Antenna for HF Remote Sensing

A compact four-element antenna, along with a numerical direction-finding algorithm, is analyzed using computer simulations that model sea-echo data obtained with an HF pulsed Doppler radar. The algorithm consists of closed-form expressions and is capable of deriving the angles-of-arrival for one or...

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Bibliographic Details
Published in:IEEE transactions on geoscience and remote sensing 1985-01, Vol.GE-23 (1), p.18-24
Main Authors: Miller, Patricia A., Lyons, Robin S., Weber, Bob L.
Format: Article
Language:English
Subjects:
Algorithm design and analysis
Closed-form solution
Computer errors
Computer simulation
Directive antennas
Doppler radar
Hafnium
Navigation
Radar antennas
Remote sensing
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Description
Summary:A compact four-element antenna, along with a numerical direction-finding algorithm, is analyzed using computer simulations that model sea-echo data obtained with an HF pulsed Doppler radar. The algorithm consists of closed-form expressions and is capable of deriving the angles-of-arrival for one or two signals impinging upon the antenna. Errors associated with the calculated angles are presented as a function of signal-to-noise ratio. In addition, it is demonstrated that preaveraging antenna voltages over independent data samples can decrease the angle errors and extend the range of the radar.
ISSN:0196-2892
1558-0644
DOI:10.1109/TGRS.1985.289496