Research on the Blind Equalization technology Based on the Complex BP Neural Network with Tunable Activation Functions
The blind equalization technology was proposed to reduce the inter-symbol interference(ISI)without training signal sequences.It saved the bandwidth resources and increased the correctness of signal transmissions.The blind equalizers had consequently been an indispensable part of the communication system.The blind equalization technology based on backward propagation(BP)neural networks had been widely studied with a variety of developments and improvements.In this paper,a new equalizer based on the complex BP neural networks with tunable activation functions(TAF)is proposed,algorithms were derived and simulations were done.Results showed that the proposed equalizer would work faster with less square errors than that based on traditional BP neural networks.It worked very well with zero byte-error rates(BER)when signal-to-noise(SNR)of the communication system was larger than 15 dB.
blind equalization technology complex signal backward propagation neural network tunable activation function
Juan ZHAO Zheng-Ming GAO
School of Electronics and Information Engineering,Jingchu University of Technology,Jingmen China Baoji Research Institute of High Technology,Baoji,China
国际会议
重庆
英文
813-817
2017-03-25(万方平台首次上网日期,不代表论文的发表时间)