Null broadening adaptive beamforming based on semidefinite programming

In this paper, we introduce a procedure for the null broadening algorithm design with respect to the perturbation of the interference location. This method is based on maximizing the array output signal-to-interference-plus-noise-ratio (SINR) subject to quadratic constraints. The design problem can...

Celý popis

Uloženo v:
Podrobná bibliografie
Vydáno v:International Conference on Signal Processing (Print) s. 1601 - 1604
Hlavní autoři: Junhui Qian, Zishu He, Yile Zhang, Bo Wu
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 01.11.2016
Témata:
Adaptive arrays
Array signal processing
beampattern shaping constraints
Interference
Optimization
Programming
quadratically constrained quadratic programming
Robust adaptive beamforming
Robustness
semidefinite programming
Signal to noise ratio
ISBN:9781509013449, 150901344X
ISSN:2164-5221
On-line přístup:Získat plný text
Tagy: Přidat tag
Žádné tagy, Buďte první, kdo vytvoří štítek k tomuto záznamu!
Popis
Shrnutí:In this paper, we introduce a procedure for the null broadening algorithm design with respect to the perturbation of the interference location. This method is based on maximizing the array output signal-to-interference-plus-noise-ratio (SINR) subject to quadratic constraints. The design problem can be cast as a fractional quadratically constrained quadratic programming (QCQP) problem that can be solved efficiently using the semidefinite programming (SDP) techniques, the semidefinite relaxation can be used to obtain a lower bound on the optimal objective function. This proposed approach imposes broadened nulls towards the interference region while possesses well-maintained pattern. Theoretical analysis and numerical results demonstrate that the performance of proposed adaptive beamformer is almost always close to optimal.
ISBN:9781509013449
150901344X
ISSN:2164-5221
DOI:10.1109/ICSP.2016.7878097