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Table 1 The definitions of the symbols used in the paper (Continued)

From: Robust widely linear beamforming using estimation of extended covariance matrix and steering vector

Symbols Definitions
Ψ Extended subspace
ψ Subspace coefficient vector
J Number of grid points in complementary Θ1
I Number of iterations
d(θp) Coherently scattered paths
φp Scattered path phases
ξ Norm of random steering vector mismatch