宽带链波形峰均功率比的降低方法  

Reduction Method for Peak-to-average Power Ratio of Wideband Link Waveform

作　　者：周洋[1] 朱辉 陆文广[1] 周春福[1] ZHOU Yang;ZHU Hui;LU Wenguang;ZHOU Chunfu(The 28th Research Institute of China Electronics Technology Group Corporation,Nanjing 210007,China)

机构地区：[1]中国电子科技集团公司第二十八研究所

出　　处：《指挥信息系统与技术》2019年第6期76-80,共5页Command Information System and Technology

基　　金：战略支援部队“十三五”预研课题资助项目

摘　　要：提出了一种降低宽带链波形峰均功率比(PAPR)的方法,在发送端通过相位旋转降低PAPR,在接收端通过基于快速傅里叶变换(FFT)插值的信道估计获取信道响应,在估计信道冲激响应(CIR)时,通过一个优化过程对冲激响应的尾部进行处理,从而提取出发送端的相位旋转信息。该方法可有效降低宽带链波形的PAPR,并能避免边带信息的发送,从而提升系统吞吐量。A method to reduce the peak-to-average power ratio(PAPR)of wideband link is proposed.The PA RT is reduced by phase rotation at the sending end and the channel response is obtained by channel estim ation based on the fast Fourier transform(FFT)interpolation at the receiving end.When estim ating the channel impulse response(CIR),the tail of the impact response is processed through an optimization process to extract the phase rotation information of the sending end.This method can effectively reduce PARP of the wideband link waveform,and can avoid the transm ission of sideband information,so as to improve the system throughput.

关 键 词：宽带链 峰均功率比 信道估计 信道冲激响应 

分 类 号：TN929.53[电子电信—通信与信息系统]