Instantaneous frequency estimation of intersecting and close multi-component signals with varying amplitudes

被引:38
作者
Khan, Nabeel Ali [1 ]
Mohammadi, Mokhtar [2 ]
Ali, Sadiq [3 ]
机构
[1] Fdn Univ, Dept Elect Engn, Islamabad, Pakistan
[2] Univ Human Dev, Dept Informat Technol, Sulaimanyah, Iraq
[3] Univ Engn & Technol, Dept Elect Engn, Peshawar, Pakistan
关键词
Instantaneous frequency estimation; Adaptive time-frequency analysis; Intersecting components; Highly adaptive directional time-frequency distribution; NONSTATIONARY SIGNALS; SEPARATION; EXTRACTION;
D O I
10.1007/s11760-018-1377-7
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
Instantaneous frequency (IF) estimation of multi-component signals with closely spaced and intersecting signal components of varying amplitudes is a challenging task. This paper presents a novel iterative time-frequency (TF) filtering approach to address this problem. The proposed algorithm first adopts a high-resolution time-frequency distribution to resolve close components in the TF domain. Then, IF of the strongest signal component is estimated by a new peak detection and tracking algorithm that takes into account both the amplitude and the direction of peaks in the TF domain. The estimated IF is used to remove the strongest component from the mixture, and this process is repeated till the IFs of all signal components are estimated. Experimental results show the superiority of the proposed method as compared to other state-of-the-art methods.
引用
收藏
页码:517 / 524
页数:8
相关论文
共 31 条
[1]   Time-Frequency Analysis for GNSSs [J].
Amin, Moeness G. ;
Borio, Daniele ;
Zhang, Yimin D. ;
Galleani, Lorenzo .
IEEE SIGNAL PROCESSING MAGAZINE, 2017, 34 (05) :85-95
[2]  
[Anonymous], TIME FREQUENCY SIGNA
[3]   The Huang Hilbert Transform for evaluating the instantaneous frequency evolution of transient signals in non-linear systems [J].
Baccigalupi, Aldo ;
Liccardo, Annalisa .
MEASUREMENT, 2016, 86 :1-13
[4]   A SIGNAL-DEPENDENT TIME-FREQUENCY REPRESENTATION - OPTIMAL KERNEL DESIGN [J].
BARANIUK, RG ;
JONES, DL .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1993, 41 (04) :1589-1602
[5]   Algorithms for blind components separation and extraction from the time-frequency distribution of their mixture [J].
Barkat, B ;
Abed-Meraim, K .
EURASIP JOURNAL ON APPLIED SIGNAL PROCESSING, 2004, 2004 (13) :2025-2033
[6]   Instantaneous frequency estimation of nonlinear frequency-modulated signals in the presence of multiplicative and additive noise [J].
Barkat, B .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2001, 49 (10) :2214-2222
[7]   Separation of Overlapped Non-Stationary Signals by Ridge Path Regrouping and Intrinsic Chirp Component Decomposition [J].
Chen, Shiqian ;
Dong, Xingjian ;
Xing, Guanpei ;
Peng, Zhike ;
Zhang, Wenming ;
Meng, Guang .
IEEE SENSORS JOURNAL, 2017, 17 (18) :5994-6005
[8]   Intrinsic chirp component decomposition by using Fourier Series representation [J].
Chen, Shiqian ;
Peng, Zhike ;
Yang, Yang ;
Dong, Xingjian ;
Zhang, Wenming .
SIGNAL PROCESSING, 2017, 137 :319-327
[9]  
Conru C., 2005, IEEE INT C AC SPEECH
[10]   An algorithm for the Wigner distribution based instantaneous frequency estimation in a high noise environment [J].
Djurovic, I ;
Stankovic, LA .
SIGNAL PROCESSING, 2004, 84 (03) :631-643