AM-FM Signal Modulation Recognition Based on the Power Spectrum

作者：Zhao Sen^*; Yi Liangzhong; Pei Zheng; Xu Dongxu

来源：7th International Conference on Intelligent Systems and Knowledge Engineering, ISKE 2012, 2012-12-15 to 2012-12-17.

DOI：10.1007/978-3-642-37832-4_18

• Complex problems
• Discrimination rule
• Feature parameters
• Frequency domains
• Modulation recognition
• Signal modulations
• Spectrum features
• Spectrum properties

Modulation recognition in frequency domain is a complex problem. This paper deals with classification for analog modulated signals based on the frequency domain information. Here, two feature parameters are designed to describe the spectrum property of the modulated signals, one is the ratio of the square of the mean value of the spectrum amplitude to the variance, and the other is the kurtosis of the normalized spectrum amplitude. Modulation recognition rules based on the two feature parameters are extracted. The rules are used to recognize AM-FM analog modulated signals, which are actual spectrum data by Agilent E4407 Spectrum Analyzer. The test results show the effectiveness of our method in this paper.

• 出版日期2014