Abstract
In this paper, a Quadrature Amplitude Modulation (QAM) signal recognition algorithm is proposed based on amplitude distribution of the signal. The algorithm uses envelop amplitude distribution information extracted by wavelet analysis to do modulation classification. It provides robustness for symbol rate determination. Simulation shows that it is more effective and convenient than the recognition algorithm of likelihood function at moderate Signal-to-Noise Ratio (SNR).
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Communication author: Fu Yusheng, born in 1973, male, Ph.D.. University of Electronic Science and Technology of China, Chengdu 611731, China.
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Yusheng, F., Chunhui, R. & Wei, H. QAM signals recognition based on Amplitude distribution. J. Electron.(China) 28, 58–63 (2011). https://doi.org/10.1007/s11767-011-0469-0
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DOI: https://doi.org/10.1007/s11767-011-0469-0