文章基本信息

标题：Comparative Study of Exponential Signal by an Interpolated DFT Algorithm
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作者：Minal Patil ; T.G. Panse
期刊名称：International Journal of Computer Science and Information Technologies
电子版ISSN：0975-9646
出版年度：2013
卷号：4
期号：2
页码：248-251
出版社：TechScience Publications
摘要：In this paper, exponential signals in the frequency domain are accurately analyzed by an algorithm, and the peaks of the discrete Fourier transform (DFT) result are adopted to obtain parameters that include amplitudes, frequencies, damping, and phases. There are two steps for this algorithm: interpolated DFT and leakage elimination. Interpolated DFT refers to the three neighboring spectral lines at the peak of each mode used to calculate an approximate result, with the purpose of leakage elimination being to eliminate the influence of leakage on these data. After some iteration, this algorithm will obtain accurate parameters using Interpolated DFT algorithm. Also comparison with different algorithms and Theoretical values of the parameters are also obtained here.
关键词：dft;idft;damping;leakage