We study a compressed sensing solver called Approximate Message-Passing when the i.i.d matrices —for which it has been designed— are replaced by structured operators allowing computationally fast matrix multiplications. We show empirically that after proper randomization, the underlying structure of the operators does not significantly affect the performances of the solver. In particular, for s...

Abstract One-dimensional nanofibers can be transformed into hollow structures with larger specific surface area, which contributes to the enhancement of gas adsorption. We firstly fabricated Cu-doped In 2 O 3 (Cu-In ) by electrospinning and calcination for detecting H S. The experimental results show that Cu doping concentration besides operating temperature, concentration, relative humidity gr...