摘要
在相位相干的水下通信中,复杂的信道环境使经常规被动时间反转处理后的信号仍存在残余的码间干扰,为此,该文研究了将信道预均衡器和被动时间反转相结合来克服残余码间干扰,提高通信可靠性的接收端处理方法。实验结果不仅表明了基于预均衡的被动时间反转在水下通信中所具有的可靠性,而且证实了其较常规被动时间反转的性能增强。
As passive time reversal without any other equalizer is used in phase coherent underwater communication,there always is some residual intersymbol interference(ISI) depending on the complexity of the channel.Therefore a method to reduce the residual ISI is studied by combining channel pre-equalization with passive time reversal.The experimental results show that passive time-reversal based on this pre-equalizer is not only reliable but also performance enhancement compared to conventional passive time-revers...
出处
《杭州电子科技大学学报（自然科学版）》
2011年第1期66-69,共4页
Journal of Hangzhou Dianzi University：Natural Sciences
基金
浙江省自然科学基金资助项目(Y7080044)
关键词
被动时反
码间干扰
预均衡
性能增强
passive time reversal
intersymbol interference
pre-equalization
performance enhancement
