- and -Norm Joint Regularization Based Sparse Signal Reconstruction Scheme

Figure 1

The illustration of the sparse signal reconstruction in 3D space, where the intersection between the unit-length norm ball and the hyperplane defines the solution. -norm illustration in (a)–(e); the proposed joint - and -norm in (f)–(h). (a) ; (b) ; (c) ; (d) ; (e) ; (f) ; (g) ; (h) . It can be noted that when , the intersection takes place on the axes, leading to a sparse solution. The intersection of the proposed joint - and -norm case will take place on the axes as well.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)