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arXiv 2004.05788eess.IVcs.NAmath.NA
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相位恢复的数值计算

The Numerics of Phase Retrieval

Albert Fannjiang, Thomas Strohmer

摘要:

相位恢复,即,从函数的傅里叶变换的平方幅度恢复函数的问题出现在诸如X射线晶体学、衍射成像、光学、量子力学和天文学的许多应用中。几十年来,这个问题一直困扰着工程师、物理学家和数学家。最近,相位恢复已经看到了复苏的研究活动,点燃了新的成像模式和新的数学概念。随着我们的科学实验产生越来越大的数据集,并且我们的目标是越来越快的吞吐量,以系统和原则的方式研究所涉及的数值算法变得越来越重要。事实上,在过去的十年里,相位恢复的计算算法的系统研究激增。在本文中,我们将回顾这些最新进展,从数值的观点。

英文摘要:

Phase retrieval, i.e., the problem of recovering a function from the squared magnitude of its Fourier transform, arises in many applications such as X-ray crystallography, diffraction imaging, optics, quantum mechanics, and astronomy. This problem has confounded engineers, physicists, and mathematicians for many decades. Recently, phase retrieval has seen a resurgence in research activity, ignited by new imaging modalities and novel mathematical concepts. As our scientific experiments produce larger and larger datasets and we aim for faster and faster throughput, it becomes increasingly important to study the involved numerical algorithms in a systematic and principled manner. Indeed, the last decade has witnessed a surge in the systematic study of computational algorithms for phase retrieval. In this paper we will review these recent advances from a numerical viewpoint.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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