An Adaptive Gradient Projection Algorithm for Piecewise Convex Optimization and Its Application in Compressed Spectrum Sensing

Figure 2

Iteration processes of AST and AGP. (a) Sequence solved by AST converges to . (b) Sequence solved by AGP converges to . (c) Iteration process of AST. (d) Iteration process of AGP.

(a)

(b)

(c)

(d)