Yu Xia

collaborators

2 papers

math.FA2020

Sparse phase retrieval via Phaseliftoff

Yu Xia, Zhiqiang Xu

The aim of sparse phase retrieval is to recover a $k$ -sparse signal $x_{0} \in C^{d}$ from quadratic measurements $∣ ⟨ a_{i}, x_{0} ⟩ ∣^{2}$ wher…

math.FA2019

The recovery of complex sparse signals from few phaseless measurements

Yu Xia, Zhiqiang Xu

We study the stable recovery of complex $k$ -sparse signals from as few phaseless measurements as possible. The main result is to show that one can employ $ℓ_{1}$ minimization to s…