Research Article

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

Figure 4

SU received signals are reconstructed with the denoising spectrum coefficients solved by AST and AGP, respectively. (a) Reconstructed SU received signals based on AST and AGP. (b) Denoising spectrum coefficients solved by AST and AGP.
(a)
(b)