619123.fig.003a
(a)
619123.fig.003b
(b)
619123.fig.003c
(c)
Figure 3: (a) Original signal with length 4096 and 128 nonzero elements. (b) The noisy measurement with length 1024. (c) Recovery signal by HSG-V with 232 iterations, 15.16 s CPU time in seconds, and 3.14e-06 error.