Table 2 Sparse multigrid algorithm
From: Sparse multidimensional modal analysis using a multigrid dictionary refinement
- Input. A signal y∈ ℂM, a matrix Φ ∈ ℂM × N, a scaler λ and an integer L - Output. A sparse coefficient vector xL-1∈ ℂN |
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For l = 0 up to l = L - 1 End For. |