SPSA-Based Tracking Method for Single-Channel-Receiver Array

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2013-06Alternative metrics PlumX
http://hdl.handle.net/11012/36886Altmetrics
http://hdl.handle.net/11012/36886
http://hdl.handle.net/11012/36886
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A novel tracking method in the phased antenna array with a single-channel receiver for the moving signal source is presented in this paper. And the problems of the direction-of-arrival track and beamforming in the array system are converted to the power maximization of received signal in the free-interference conditions, which is different from the existing algorithms that maximize the signal to interference and noise ratio. The proposed tracking method reaches the global optimum rather than local by injecting the extra noise terms into the gradient estimation. The antenna beam can be steered to coincide with the direction of the moving source fast and accurately by perturbing the output of the phase shifters during motion, due to the high efficiency and easy implementation of the proposed beamforming algorithm based on the simultaneous perturbation stochastic approximation (SPSA). Computer simulations verify that the proposed tracking scheme is robust and effective.
Keywords
Phased array antenna, tracking, single-channel receiver, simultaneous perturbations stochastic approximation (SPSA)Persistent identifier
http://hdl.handle.net/11012/36886Document type
Peer reviewedDocument version
Final PDFSource
Radioengineering. 2013, vol. 22, č. 2, s. 564-570. ISSN 1210-2512http://www.radioeng.cz/fulltexts/2013/13_02_0564_0570.pdf
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