Spectrum Sensing and AM-FM Decomposition through Synchrosqueezing

• 作者: K. A. Narayanankutty K. Divya K. Vandhana P. Roshni P. V. S. Sowmya S. Ashwin
• 来源期刊: 无线工程与技术(英文)
• 学科: 工学
• 关键词: COGNITIVE RADIO Synchrosqueezing AM-FM SPECTRUM SENSING TIME-FREQUENCY Reassignment Empirical Mode DECOMPOSITION
• 年，卷（期）: 2013,（3）
• 页码范围: 134-138
• 页数: 5页
• 分类号: TN91

摘要

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.