Adaptive correlation algorithm for aligning antenna arrays in deep space communication

Instead of using large apertures, antenna arrays can be used to enhance the receiving signal-to-noise ratio in deep space applications. An adaptive correlation algorithm is presented. This method is a variable step-size algorithm based on a sigmoid function, which not only uses the cross-correlation...

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Bibliographic Details
Published in:Electronics letters 2013-06, Vol.49 (12), p.733-734
Main Authors: Bai, Y.-F, Wang, X.-H, Gao, C.-J, Huang, Q.-L, Shi, X.-W
Format: Article
Language:English
Subjects:
adaptive correlation algorithm
antenna array alignment
antenna arrays
Antennas and propagation
Applied sciences
correlation methods
deep space communication
Exact sciences and technology
functions
iterative methods
matrix algebra
Radiocommunications
receiving signal‐to‐noise ratio enhancement
Sigmoid function
space communication links
Telecommunications
Telecommunications and information theory
Transmitters. Receivers
variable step‐size matrix‐free power algorithm
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Summary:Instead of using large apertures, antenna arrays can be used to enhance the receiving signal-to-noise ratio in deep space applications. An adaptive correlation algorithm is presented. This method is a variable step-size algorithm based on a sigmoid function, which not only uses the cross-correlation of each antenna with the reference one but also utilises the variance of weight updating values from every iteration. The simulation results demonstrate that the proposed algorithm can achieve low combining loss for very weak signals after a few iterations.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2013.0580