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- W2949085087 abstract "Frequency estimation of multiple sinusoids is significant in both theory and application. In some application scenarios, only sub-Nyquist samples are available to estimate the frequencies. A conventional approach is to sample the signals at several lower rates. In this paper, we address frequency estimation of the signals in the time domain through undersampled data. We analyze the impact of undersampling and demonstrate that three sub-Nyquist channels are generally enough to estimate the frequencies provided the undersampling ratios are pairwise coprime. We deduce the condition that leads to the failure of resolving frequency ambiguity when two coprime undersampling channels are utilized. When three-channel sub-Nyquist samples are used jointly, the frequencies can be determined uniquely and the correct frequencies are estimated. Numerical experiments verify the correctness of our analysis and conclusion." @default.
- W2949085087 created "2019-06-27" @default.
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- W2949085087 date "2016-10-08" @default.
- W2949085087 modified "2023-10-14" @default.
- W2949085087 title "Frequency Estimation of Multiple Sinusoids with Three Sub-Nyquist Channels" @default.
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- W2949085087 doi "https://doi.org/10.48550/arxiv.1610.02481" @default.
- W2949085087 hasPublicationYear "2016" @default.
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