Fig. 6.

The reconstruction error, err(k), is shown for different conditions. The signal strength $\left|\right|Y_k|{|}_F$ (black) is shown for scale. The methods are: SVD (blue), SMSSVD (red) and SPC (green, magenta, cyan) with decreasing degree of sparsity (regularization parameters $c=0.04\sqrt{P},\hspace{0.17em}c=0.12\sqrt{P}$ and $c=0.36\sqrt{P}$ respectively). No errors larger than the signal strength are displayed as that indicates that a different signal has been found