摘要
在无线通信中,由于信道特性而引起的码间干扰(ISI)是影响通信质量的一个主要因素。抵消ISI的基本方法就是对接收到的数据进行均衡,均衡前进行准确的信道估计非常重要。给出一种在此信息传输系统下基于隐训练序列的信道阶数的估计方法,并对其进行了仿真分析。仿真结果显示,通过对原发送信息序列进行了帧实际数据零均值处理,达到了比较准确的信道阶数估计效果。
In wireless communication system,the inter-symbol interference caused by non-ideal channel characteristic is the main influence on communication quality.Channel equalization based on channel estimation is the basic mothod for the reduction of ISI,it is crucial to exercise accurate channel estimation in advance of the equalization.This paper gives a novel method based on implicit sequence for estimation of channel order in this information transmissiony system.The simulation results indicate that,by making zero-mean processing of practical frame data on the originally-sent data sequence,a fairly good performance of channel order estimation is achieved.
出处
《通信技术》
2010年第11期33-34,51,共3页
Communications Technology
关键词
信道估计
隐训练序列
阶数估计
channel estimation
implicit training sequence
order estimation
