NDLI: Algorithms for signal reconstruction from short-time Fourier transform magnitude

Content Provider	IEEE Xplore Digital Library
Author	Nawab, S. Quatieri, T. Jae Lim
Copyright Year	1983
Description	Author affiliation: Massachusetts Institute of Technology, Lexington, Massachusetts (Nawab, S.)
Abstract	We have previously established a number of conditions under which a real signal can be uniquely reconstructed from its STFT magnitude. For the STFT magnitude to be a practical signal representation, we need robust reconstruction algorithms. In this paper, we discuss such a class of algorithms within the framework of sequential extrapolation techniques. Such techniques reconstruct the short-time sections of a signal in an order determined by their positions on the time axis. We find that compared to direct reconstruction, the robust algorithms are less sensitive to roundoff errors. To further test the robustness of these algorithms, we applied them to STFT magnitudes which were purposely modified for accomplishing signal processing tasks such as noise reduction and time-scale modification of speech.
Starting Page	800
Ending Page	803
File Size	68284
Page Count	4
File Format	PDF
DOI	10.1109/ICASSP.1983.1172091
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1983-04-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Signal reconstruction Fourier transforms Signal processing algorithms Noise robustness Signal representations Reconstruction algorithms Extrapolation Roundoff errors Testing Noise reduction
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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