4 papers
On the Asymptotic Performance of Diagonally Loaded Detectors for Large Arrays: To Achieve CFAR and Optimality
Jie Zhou, Junhao Xie
This paper addresses two critical limitations in diagonally loaded (DL) adaptive matched filter (AMF) detector: (1) the lack of CFAR property with respect to arbitrary covariance m…
Direct Estimation of Eigenvalues of Large Dimensional Precision Matrix
Jie Zhou, Junhao Xie, Jiaqi Chen
In this paper, we consider directly estimating the eigenvalues of precision matrix, without inverting the corresponding estimator for the eigenvalues of covariance matrix. We focus…
Compound Gaussian Radar Clutter Model With Positive Tempered Alpha-Stable Texture
Xingxing Liao, Junhao Xie, Jie Zhou
The compound Gaussian (CG) family of distributions has achieved great success in modeling sea clutter. This work develops a flexible-tailed CG model to improve generality in clutte…
Optimal volume bound and volume growth for Ricci-nonnegative manifolds with positive Bi-Ricci curvature
Jie Zhou, Jintian Zhu
In this paper, we prove the optimal volume growth for complete Riemannian manifolds with nonnegative Ricci curvature everywhere and bi-Ricci curvature bounded from below…