A Novel Modulation Recognition Algorithms for Wireless Analog Signal

Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 207)

Abstract

In this paper, a novel modulation recognition algorithm for wireless analog signal is proposed. Firstly, Hilbert transform is applied to construct the analytic signal and time–frequency analysis, and then the modulation recognition method based decision theory is introduced and whose drawbacks are indicated, finally, we propose the description of modulation recognition algorithm based on wavelet transform and BP neural network. Simulation results show that the proposed method can automatically recognize the wireless analog signal. Furthermore, the recognition rate of wireless analog signal can reach to 85 % when the Signal–Noise ratio (SNR) reduce to 0 dB.

Keywords

Modulation recognition Decision theory BP neural network Morlet wavelet 

References

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Copyright information

© Springer-Verlag London 2013

Authors and Affiliations

  1. 1.School of Electronic and Information EngineeringLanzhou Jiaotong UniversityLanzhouChina

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