摘要
针对室内复杂环境的多径传播特性会严重影响通信性能,引入一种具有时空聚焦特性的时间反演技术。这一技术利用信道信息,使信道本身形成空间和时间的滤波器,对发射信号在发射端进行预滤波,从而实现自适应处理。仿真结果表明,在室内多径情况严重情况下,可有效降低误码率。
Aiming at the problem that the multi-path propagation in the complex indoor environment will seriously deteriorate communication performance, the Time Reversal （TR） technology is applied to the UWB system. The channel characteristics are used to code the signal, so the channel becomes a filter to fulfill the temporal and spatial focus. Meanwhile the TR technique can be used as the adaptive filtering. The simulation results show that it can reduce the Bits Error Rate （BER） effectively in the muhiDath environment.
出处
《电视技术》
北大核心
2011年第21期100-104,共5页
Video Engineering
基金
重庆市教委科学技术研究项目(KJ100520)
重庆邮电大学科研基金项目(A2009-23)
