Multi-component instantaneous frequency estimation using signal decomposition and time-frequency filtering

被引:10
作者
Akram, Jamal [1 ]
Khan, Nabeel Ali [2 ]
Ali, Sadiq [3 ]
Akram, Adeel [4 ]
机构
[1] Univ Engn & Technol, Comp Engn, Taxila, Pakistan
[2] Fdn Univ, Elect Engn, Islamabad, Pakistan
[3] Univ Engn & Technol, Elect Engn, Peshawar, Pakistan
[4] Univ Engn & Technol, Telecom Engn, Taxila, Pakistan
关键词
Time-frequency; Instantaneous frequency; Wigner-Ville distribution; Eigen-decomposition; Ridge tracking; Ridge path regrouping; IF ESTIMATION; SEPARATION; EXTRACTION;
D O I
10.1007/s11760-020-01711-6
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A novel method is presented for the instantaneous frequency estimation of multi-component signals with crossing signatures in the time-frequency domain. The proposed method uses a combination of Eigen decomposition of time-frequency distributions and time-frequency filtering to recursively extract signal components from the original mixture and estimate their instantaneous frequencies. The proposed algorithm outperforms other algorithms of similar complexity in terms of mean square error accuracy.
引用
收藏
页码:1663 / 1670
页数:8
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