摘要
主要研究采用OFDM技术的低压电力线通信的信道估计问题。通过分析低压电力线信道特性,提出了一种基于Kohonen神经网络的盲信道估计算法。该算法基于Kohonen竞争神经网络,利用接收机接收到的频域信息进行非线性的直接判决,因而无需辅助的导频信息。仿真结果表明该算法具有很好的误码性能。
This paper is mainly about the channel estimation of low voltage power-line communication with OFDM technology. By analyzing the characteristic of low voltage power-line channel, we propose a blind channel estimation algorithm based on Kohonen neural network. algorithm is based on Kohonen cornpetitive neural network which utilizes the frequency domain data in the receiver performing a nonlinear decision-directed; therefore, there is no need for supporting pilot information. The simulation results show that the proposed algorithm has good BER performance.
出处
《东北电力大学学报》
2008年第6期68-71,共4页
Journal of Northeast Electric Power University
