2023
Radar Clutter Covariance Estimation: A Nonlinear Spectral Shrinkage Approach
ICASSP 2023accepted
In this paper, we exploit the spiked covariance structure of the clutter plus noise covariance matrix for adaptive radar signal processing. Using state-of-the-art techniques from mathematical finance and high dimensional statistics we propose a non-linear shrinkage-based rotation invariant spiked co…