A Robust Capon Beamformer against Uncertainty of Nominal Steering Vector

  • Zhu Liang YuEmail author
  • Meng Hwa Er
Open Access
Research Article


A robust Capon beamformer (RCB) against the uncertainty of nominal array steering vector (ASV) is formulated in this paper. The RCB, which can be categorized as diagonal loading approach, is obtained by maximizing the output power of the standard Capon beamformer (SCB) subject to an uncertainty constraint on the nominal ASV. The bound of its output signal-to-interference-plus-noise ratio (SINR) is also derived. Simulation results show that the proposed RCB is robust to arbitrary ASV error within the uncertainty set.


Information Technology Output Power Quantum Information Steering Vector Diagonal Loading 


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Copyright information

© Yu and Er 2006

Authors and Affiliations

  1. 1.Center for Signal ProcessingNanyang Technological UniversitySingapore
  2. 2.School of Electrical and Electronic EngineeringNanyang Technological UniversitySingapore

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