
187Compressive Sensing
120010008006004002000
–4
–3
–2
0
1
(a)
120010008006004002000
–4
–3
–2
0
1
(b)
FIGURE 8.16
Matching pursuit one-dimensional signal reconstruction: (a) original signal; (b) noiseless one-
dimensional reconstruction; (c) medium noisy one-dimensional reconstruction; (d) heavily
noisy one-dimensional reconstruction. (continued )