Estimation for Instantaneous Frequency Using a Combined Fractional Time-Frequency Representation(Sensing)
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概要
- 論文の詳細を見る
In this letter, a combined method based on the fractional linear and the fractional bilinear time-frequency representations (TFRs) is proposed. The method combines the windowed fractional short-time Fourier transform with the fractional Wigner distribution (WD) to estimate the instantaneous frequency (IF) of signals in the appropriate fractional time-frequency domain. For a multi-component signal, the method can significantly eliminate the cross terms and improve the time-frequency resolution of the auto-terms. It is applied to the detection and parameter estimation of linear frequency modulated (LFM) signals. The computer simulations clearly demonstrate that the method is effective.
- 社団法人電子情報通信学会の論文
- 2007-01-01
著者
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Geng Junping
Department Of Electronic Engineering School Of Electronic Information And Electrical Engineering Sha
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Jin Ronghong
Department Of Electronic Engineering School Of Electronic Information And Electrical Engineering Sha
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LI Jiaqiang
Department of Electronic Engineering, School of Electronic, Information and Electrical Engineering,
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Li Jiaqiang
Department Of Electronic Engineering School Of Electronic Information And Electrical Engineering Sha
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