DocumentCode
2740356
Title
A Modified FFT Algorithm for Efficient Computation of Narrow Band Spectrum
Author
Majumdar, S. ; Ramakrishnan, Shankar ; Nair, Naveen V. ; Chan, S.C. ; Clifford, R. ; Udpa, S.S.
Author_Institution
Dept. of Electr. & Comput. Eng., Michigan State Univ., East Lansing, MI
fYear
2006
fDate
7-10 May 2006
Firstpage
552
Lastpage
557
Abstract
In many applications, we are interested in computing the energy contained in a narrow band of a bandpass signal given its bandwidth and carrier frequency. The technique implemented in this paper can be used to compute the Fourier transform (FT) in a narrow band without having to calculate the entire frequency spectrum. It uses the decimation in time method for computing the FFT, exploiting some of the symmetry properties of the transform technique
Keywords
fast Fourier transforms; spectral analysis; bandpass signal; carrier frequency; fast Fourier transform; frequency spectrum; modified FFT algorithm; narrow band spectrum; Application software; Bandwidth; Computational complexity; Discrete Fourier transforms; Fast Fourier transforms; Fourier transforms; Frequency; Narrowband; Signal processing; Signal processing algorithms; FFT; narrow band spectrum; tree-based method; zero-padding;
fLanguage
English
Publisher
ieee
Conference_Titel
Electro/information Technology, 2006 IEEE International Conference on
Conference_Location
East Lansing, MI
Print_ISBN
0-7803-9592-1
Electronic_ISBN
0-7803-9593-X
Type
conf
DOI
10.1109/EIT.2006.252206
Filename
4017763
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