Spectrum Sensing and AM-FM Decomposition through Synchrosqueezing

K. Vandhana, P. V. S. Sowmya, P. Roshni, K. Divya, S. Ashwin, K. A. Narayanankutty

Department of Electronics and Communication Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, India..

DOI: 10.4236/wet.2013.43020                

Abstract

In this paper we have accomplished one of the tasks of cognitive radio i.e. dynamic spectrum sensing by using wavelet based Synchrosqueezing transform [1], a novel technique, which was proposed to analyze a signal in time-frequency plane. The distinctive feature of this transform compared to other techniques is that it enables us to decompose amplitude and frequency modulated signals and allows individual reconstruction of these components. The objective is also to separate the occupied band into amplitude modulated and frequency modulated bands.

Keywords

Cognitive Radio; Synchrosqueezing; AM-FM; Spectrum Sensing; Time-Frequency Reassignment;Empirical Mode Decomposition

Conflicts of Interest

The authors declare no conflicts of interest.

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