Approximate-Message-Passing

Approximate Message Passing is an ultra fast sparse recovery algorithm. This repository contains modification of Approximate Message Passing (AMP) for sparse complex vector recovery in noise. As a denoiser, signum function is used. Moreover, for optimum shrinkage tuning, I used the recommendation from the following paper:

The Noise-Sensitivity Phase Transition in Compressed Sensing

https://arxiv.org/pdf/1004.1218.pdf