Interference (communication)

Quantum mechanics

Algorithm

Control (management)

Statistics

Covariance matrix

Entropy (arrow of time)

Noise power

Telecommunications

Power (physics)

Computer science

Adaptive beamformer

Beamforming

Covariance

Physics

Pattern recognition (psychology)

Mathematics

Artificial intelligence

Channel (broadcasting)

Control theory (sociology)

IEEE Signal Processing Letters

To ensure signal receiving quality, robust adaptive beamforming (RAB) is of vital importance in modern communications. In this letter, we propose a new low-complexity RAB approach based on interference-plus-noise covariance matrix (IPNC) reconstruction and steering vector (SV) estimation. In this method, the IPNC and desired signal covariance matrices are reconstructed by estimating all interference powers as well as the desired signal power using the principle of maximum entropy power spectrum (MEPS). Numerical simulations demonstrate that the proposed method can provide superior performance to several previously proposed beamformers.

Maximum Entropy-Based Interference-Plus-Noise Covariance Matrix Reconstruction for Robust Adaptive Beamforming