Moving-Target Tracking by Cognitive RF Stealth Radar Using Frequency Diverse Array Antenna

Inspired by a cognitive radar in exploiting its environment to update current operation parameters and frequency diverse array (FDA) in offering a range-dependent beampattern due to the employment of frequency increments across the elements, this paper proposes a moving-target tracking approach to a...

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Bibliographic Details
Published in:IEEE transactions on geoscience and remote sensing 2016-07, Vol.54 (7), p.3764-3773
Main Author: Wang, Wen-Qin
Format: Article
Language:English
Subjects:
Antenna arrays
Antennas
Array signal processing
Beams (radiation)
Cognitive radar
frequency diverse array (FDA)
ground moving-target indication
low probability of intercept (LPI)
moving-target tracking
Radar
Radar arrays
Radar tracking
Radio frequency
radio frequency (RF) stealth
Receivers
surveillance
Surveillance systems
Tracking
Transmitters
Visibility
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Summary:Inspired by a cognitive radar in exploiting its environment to update current operation parameters and frequency diverse array (FDA) in offering a range-dependent beampattern due to the employment of frequency increments across the elements, this paper proposes a moving-target tracking approach to achieve cognitive radio frequency stealth using an FDA antenna for surveillance applications. Since surveillance systems are highly visible to intercept receivers, a traditional high-gain phased-array antenna beam is replaced by a series of low-gain FDA beams with spoiled frequency increments to reduce the system visibility, without degrading the surveillance system performance. Moreover, a cognitive closed-loop update scheme is presented to update the operation parameters in real time for improved moving-target tracking performance. All of the proposed methods are verified by simulation results.
ISSN:0196-2892
1558-0644
DOI:10.1109/TGRS.2016.2527057