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DFT Interpolation Algorithm for Kaiser-Bessel and Dolph-Chebyshev Windows
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DOI：10.1109/TIM.2010.2046594.png)
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摘要
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This paper describes the discrete Fourier transform (DFT) interpolation algorithm for arbitrary windows and its application and performance for optimal noncosine Kaiser-Bessel and Dolph-Chebyshev windows. The interpolation algorithm is based on the polynomial approximation of the window's spectrum that is computed numerically. Two-and three-point (2p and 3p) interpolations are considered. Systematic errors and noise sensitivity are analyzed for the chosen Kaiser-Bessel and Dolph-Chebyshev windows and compared with Rife-Vincent class I windows.
Keyword:
Discrete Fourier transform (DFT)
frequency-domain measurements
frequency estimation
interpolated DFT
signal processing
windowing
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5.9
论文数:
1.9W
被引数:
5.8W
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