Phase-optimised linearly-constrained minimum-variance beamformers
Hugh L Kennedy
TL;DR
This paper introduces a method to optimize the group-delay in LCMV beamformers, enhancing performance by minimizing noise or processing delay, demonstrated through simulated VHF and UHF radar applications.
Contribution
It proposes a novel approach to determine the optimal group-delay in LCMV beamformers, exploring its impact on system performance.
Findings
Optimal delay solutions reduce noise power and processing delay.
Simulation results demonstrate improved beamformer performance.
The approach offers a new degree of freedom in beamformer design.
Abstract
A procedure for the determination of the optimal group-delay of a Linearly-Constrained Minimum-Variance (LCMV) beamformer is proposed. Two ways of selecting the optimal delay are recommended: the first is the solution that minimizes the noise power; the second is the solution that minimizes the processing delay. The potential of this hitherto unexplored degree of design freedom is investigated using simulated Very-High-Frequency (VHF) communication, and Ultra-High-Frequency (UHF) bistatic radar, applications
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