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- W3008566568 abstract "In this paper, we focus on the problem of blind joint calibration of multiband transceivers and time-delay (TD) estimation of multipath channels. We show that this problem can be formulated as a particular case of covariance matching. Although this problem is severely ill-posed, prior information about radio-frequency chain distortions and multipath channel sparsity is used for regularization. This approach leads to a biconvex optimization problem, which is formulated as a rank-constrained linear system and solved by a simple group Lasso algorithm.Numerical experiments show that the proposed algorithm provides better calibration and higher resolution for TD estimation than current state-of-the-art methods." @default.
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- W3008566568 date "2020-02-24" @default.
- W3008566568 modified "2023-09-27" @default.
- W3008566568 title "Joint blind calibration and time-delay estimation for multiband ranging" @default.
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