Separation of Overlapped Non-Stationary Signals by Ridge Path Regrouping and Intrinsic Chirp Component Decomposition

• Published in: IEEE sensors journal Vol. 17; no. 18; pp. 5994 - 6005
• Main Authors: Chen, Shiqian, Dong, Xingjian, Xing, Guanpei, Peng, Zhike, Zhang, Wenming, Meng, Guang
• Format: Journal Article
• Language: English
• Published: New York IEEE 15.09.2017; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Adaptation models; Chirp; Computer simulation; instantaneous frequency (IF); intersected IFs; Intersections; micro-Doppler (m-D); Multi-component signal; overlapped signals; Radar; Sensors; Separation; signal decomposition; Signal resolution; time frequency (T-F); Time-frequency analysis; Transforms

In some applications, it is necessary to analyze multi-component non-stationary signals whose components severely overlap in the time-frequency (T-F) domain. Separating those signal components is desired but very challenging for existing methods. To address this issue, we propose a novel non-paramet...