TITLE:
Spectrum Sensing and AM-FM Decomposition through Synchrosqueezing
AUTHORS:
K. Vandhana, P. V. S. Sowmya, P. Roshni, K. Divya, S. Ashwin, K. A. Narayanankutty
KEYWORDS:
Cognitive Radio; Synchrosqueezing; AM-FM; Spectrum Sensing; Time-Frequency Reassignment;Empirical Mode Decomposition
JOURNAL NAME:
Wireless Engineering and Technology,
Vol.4 No.3,
July
10,
2013
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.