Figure 4

Desired unavailable MSE (solid red line), and its estimate using MNDL hard thresholding (- -) and MNDL-SS (. -) as a function of m. (a) Blocks signal with σ _w = 1, (b) Blocks signal with σ _w = 5, (c) Mishmash signal with σ _w = 1, and (d) Mishmash signal with .