Title
A Wiener Filter Denoising Based Intelligent Modulation Recognition System
Abstract
In this paper, to improve the modulation recognition accuracy when the signal to noise ratio (SNR) is low, we propose a Wiener filter preprocessing aided intelligent modulation recognition method. In this design, the Wiener filter preprocessing is firstly conducted to reduce the noise of the received signal, then the signal cycle spectrum is calculated as the input to the deep neural network (DNN). Subsequently, the DNN classifier will extract the features of signals to recognize the modulation type. Simulation results show that when SNR is as low as -25dB, the average recognition accuracy of the proposed scheme is improved by about 40% compared with that of the scheme without applying the noise suppressing preprocessing operations. Moreover, compared with the benchmark scheme, the proposed scheme has achieved higher recognition accuracy in low SNR regions.
Year
DOI
Venue
2022
10.1109/ICCC55456.2022.9880789
2022 IEEE/CIC International Conference on Communications in China (ICCC)
Keywords
DocType
ISSN
Wiener filter,cyclic spectral(CS) profiles,deep neural network(DNN),modulation recognition(MR)
Conference
2377-8644
ISBN
Citations 
PageRank 
978-1-6654-8481-7
0
0.34
References 
Authors
3
7
Name
Order
Citations
PageRank
Jingreng Lei100.34
Juncheng Zhou200.34
Zijun Jian300.34
Heng Liu415327.10
Lin Zhang53822.81
Yan Feng601.01
Zhiqiang Wu700.68