Proximal gradient method based robust Capon beamforming against large DOA mismatch
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Diksha Thakur
,
Vikas Baghel
Abstract
The Capon beamformer has excellent resolution and interference suppression capability but due to various attributes of practical environment such as inaccurate and/or insufficient information about the source, transmission medium and antenna array its performance deteriorates. To enhance its performance various efforts have been devoted and one effective method is presented here. In this paper, a novel and efficient robust Capon beamformer is devised which is based on proximal gradient method (PGRCB) and the robustness is achieved through remodeling the optimization problem of standard Capon beamformer (SCB). In the proposed PGRCB, the proximal gradient method is used to formulate a new optimization problem in order to obtain the optimum weights of the robust beamformer. The proposed method can achieve better performance as compared to some recent methods in the literature and its effectiveness is verified by the simulation results.
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: None declared.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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© 2021 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Research Articles
- Singular integral equations in plane wave scattering by infinite graphene strip grating with brake of periodicity
- Research on the electromagnetic scattering from foam sea based on SMCG
- Proximal gradient method based robust Capon beamforming against large DOA mismatch
- Design and implementation of microstrip array antenna for intelligent transportation systems application
- Compact antenna based on split ring resonator as high Q-factor antenna for liquid permittivity measurements
- Compact ultra-wideband monopole antenna with tunable notch bandwidth/frequency ratio
- Miniaturized bandpass filter using coupled lines for wireless applications
- Compact four-band diplexer using defected ground structures
- Design and experimental verification of compact dual-band SIW power dividers with arbitrary power division
- High-efficiency three-way Doherty power amplifier using reconfigurable PD
Artikel in diesem Heft
- Frontmatter
- Research Articles
- Singular integral equations in plane wave scattering by infinite graphene strip grating with brake of periodicity
- Research on the electromagnetic scattering from foam sea based on SMCG
- Proximal gradient method based robust Capon beamforming against large DOA mismatch
- Design and implementation of microstrip array antenna for intelligent transportation systems application
- Compact antenna based on split ring resonator as high Q-factor antenna for liquid permittivity measurements
- Compact ultra-wideband monopole antenna with tunable notch bandwidth/frequency ratio
- Miniaturized bandpass filter using coupled lines for wireless applications
- Compact four-band diplexer using defected ground structures
- Design and experimental verification of compact dual-band SIW power dividers with arbitrary power division
- High-efficiency three-way Doherty power amplifier using reconfigurable PD
