Title :
Extended robust adaptive beamforming for general rank signal model using convex optimization
Author :
Borgo, Mauro ; Butussi, Matteo ; Pupolin, Silvano ; De Martin, Fubio
Author_Institution :
Dept. of Inf. Eng., Padova Univ., Italy
Abstract :
In this paper we propose an extension of robust adaptive beamforming based on the worst case optimization problem. Furthermore, we derive an efficient iterative algorithm to find the solution, based on convex optimization, which is applicable to a general rank signal model. Computer simulations show that the new algorithm yields better results at a lower complexity cost than previous works.
Keywords :
array signal processing; convex programming; interference (signal); iterative methods; adaptive beamforming; convex optimization problem; iterative algorithm; rank signal model; Covariance matrix; Frequency estimation; Interference; Iterative algorithms; Matrix decomposition; Member and Geographic Activities Board committees; Performance loss; Robustness; Sensor arrays; Signal to noise ratio;
Conference_Titel :
Sensor Array and Multichannel Signal Processing Workshop Proceedings, 2004
Print_ISBN :
0-7803-8545-4
DOI :
10.1109/SAM.2004.1502965