Efficient quadratic detection in perturbed arrays via Fouriertransform techniques
IEEE Transactions on Signal Processing
Parametric sensor array calibration using measured steering vectorsof uncertain locations
IEEE Transactions on Signal Processing
IEEE Transactions on Signal Processing
Robust Recursive H∞ DOA Estimation Using Spatial Forward Linear Predictor
Wireless Personal Communications: An International Journal
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This paper deals with the problem of adaptive beamforming under random array position errors to provide multiple-beam constraints and suppress jammers simultaneously. Using a steering matrix with each column vector corresponding to the steering vector of a selective beam and a constraint vector with each entry equal to the gain of a selective beam, we construct the quiescent weight vector and the blocking matrix required by a generalized sidelobe canceller, (GSC) to achieve a GSC-based adaptive array beamformer with multiple-beam constraints. For coping with the performance degradation due to random perturbations in array sensor positions, an iterative matrix reconstruction scheme in conjunction with derivative constraints is presented to alleviate the effect of random position errors. Simulation results show the effectiveness of the proposed technique.