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arXiv 1701.04890cs.ITmath.IT
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基于凸规划的附加自相关盲反卷积

Blind Deconvolution with Additional Autocorrelations via Convex Programs

Philipp Walk, Peter Jung, Götz E. Pfander, Babak Hassibi

摘要:

在这项工作中,我们的线性(非周期性)一维卷积两个固定的有限维复向量空间的所有模糊性的特征。将示出的是,卷积模糊度可以一对一地映射到$z-$域中的因子分解模糊度,因子分解模糊度是通过交换输入信号的零而生成的。我们使用这个多项式描述,以显示最近推出的掩蔽傅立叶相位恢复设计的确定性版本。在无噪声的情况下,可以使用(凸)半定规划来精确地恢复输入信号,如果它们不共享公共因子(零)。然后,我们重新制定的问题,确定性盲反卷积与自相关的先验知识。数值模拟表明,我们的方法也是强大的加性噪声。

英文摘要:

In this work we characterize all ambiguities of the linear (aperiodic) one-dimensional convolution on two fixed finite-dimensional complex vector spaces. It will be shown that the convolution ambiguities can be mapped one-to-one to factorization ambiguities in the $z-$domain, which are generated by swapping the zeros of the input signals. We use this polynomial description to show a deterministic version of a recently introduced masked Fourier phase retrieval design. In the noise-free case a (convex) semi-definite program can be used to recover exactly the input signals if they share no common factors (zeros). Then, we reformulate the problem as deterministic blind deconvolution with prior knowledge of the autocorrelations. Numerically simulations show that our approach is also robust against additive noise.

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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