DocumentCode
1868198
Title
Improved resolution short time Fourier transform
Author
Khan, Nabeel Ali ; Jafri, M. Noman ; Qazi, Saad A.
Author_Institution
Dept. Electr. Eng., Fed. Urdu Univ., Islamabad, Pakistan
fYear
2011
fDate
5-6 Sept. 2011
Firstpage
1
Lastpage
3
Abstract
Short time Fourier transform is simple and yet effective tool for computing time frequency representations. However, its performance greatly depends upon shape and size of window employed. Longer windows give good frequency resolution while shorter windows give good time resolution. In this paper, we present a novel method to improve the resolution of short time Fourier transform by combining short time Fourier transforms of different window lengths.
Keywords
Fourier transforms; signal representation; signal resolution; time-frequency analysis; frequency resolution; short time Fourier transform resolution; time frequency representation; time resolution; Chirp; Electrical engineering; Fourier transforms; Frequency modulation; Signal resolution; Spectrogram; Time frequency analysis;
fLanguage
English
Publisher
ieee
Conference_Titel
Emerging Technologies (ICET), 2011 7th International Conference on
Conference_Location
Islamabad
Print_ISBN
978-1-4577-0769-8
Type
conf
DOI
10.1109/ICET.2011.6048476
Filename
6048476
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