کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6958012 | 1451923 | 2018 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multi-source phase retrieval from multi-channel phaseless STFT measurements
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
پردازش سیگنال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Multi-source phase retrieval from multi-channel phaseless STFT measurements Multi-source phase retrieval from multi-channel phaseless STFT measurements](/preview/png/6958012.png)
چکیده انگلیسی
In a recent study, it was shown that, given only the magnitude of the short-time Fourier transform (STFT) of a signal, it is possible to recover the phase information of its STFT under certain conditions. However, this is only investigated for the single-source scenario. In this paper, we extend this work and formulate a multi-source phase retrieval problem where multi-channel phaseless STFT measurements are given as input. We then present a robust multi-source phase retrieval (RMSPR) algorithm based on a gradient descent (GD) algorithm by minimizing a non-convex loss function and independent component analysis (ICA). An improved least squares (LS) loss function is presented to find the initialization of the GD algorithm. Experimental evaluation has been conducted to show that under appropriate conditions the proposed algorithm can explicitly recover the phase of the sources, the mixing matrix, and the sources simultaneously, from noisy measurements.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 144, March 2018, Pages 36-40
Journal: Signal Processing - Volume 144, March 2018, Pages 36-40
نویسندگان
Yina Guo, Anhong Wang, Wenwu Wang,