In this paper, we propose a Wirtinger flow algorithm with optimal stepsize for short-time Fourier transform (STFT) phase retrieval. Based on the Wirtinger flow algorithm, we utilizes a noise relaxation to acquire high signal-to-noise-ratio (SNR) reconstruction and an optimal stepsize strategy to accelerate the convergence. The proposed algorithm satisfies the regularity condition for constant modulus signals with noise-free STFT measurements, and has theoretical basin of attraction. Numerical results demonstrate the convergence for noise-free measurements, and the effectiveness in noise reduction.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.