电讯技术
電訊技術
전신기술
TELECOMMUNICATIONS ENGINEERING
2014年
5期
611-614
,共4页
窄脉冲%超宽带%时延扩展%频域均衡%循环卷积
窄脈遲%超寬帶%時延擴展%頻域均衡%循環捲積
착맥충%초관대%시연확전%빈역균형%순배권적
narrow-pulse%ultra-wideband%delay spread%frequency domain equalization%cyclic convolution
由于高传输速率及多径效应的影响,在窄脉冲超宽带( IR-UWB)通信系统中,基于传统横向滤波器的时域均衡技术已无法对抗严重的码间干扰。通过收发两端联合设计,提出了一种以数据块为基础的基于码元的频域均衡技术,同时介绍了其应用前提和算法实现。仿真结果表明,所提方法能有效对抗超宽带通信系统中存在的码间干扰,是窄脉冲超宽带通信系统中更为现实的技术选择。
由于高傳輸速率及多徑效應的影響,在窄脈遲超寬帶( IR-UWB)通信繫統中,基于傳統橫嚮濾波器的時域均衡技術已無法對抗嚴重的碼間榦擾。通過收髮兩耑聯閤設計,提齣瞭一種以數據塊為基礎的基于碼元的頻域均衡技術,同時介紹瞭其應用前提和算法實現。倣真結果錶明,所提方法能有效對抗超寬帶通信繫統中存在的碼間榦擾,是窄脈遲超寬帶通信繫統中更為現實的技術選擇。
유우고전수속솔급다경효응적영향,재착맥충초관대( IR-UWB)통신계통중,기우전통횡향려파기적시역균형기술이무법대항엄중적마간간우。통과수발량단연합설계,제출료일충이수거괴위기출적기우마원적빈역균형기술,동시개소료기응용전제화산법실현。방진결과표명,소제방법능유효대항초관대통신계통중존재적마간간우,시착맥충초관대통신계통중경위현실적기술선택。
Due to high transmission rate and multipath effect in narrow-pulse ultra-wideband ( UWB ) communication system,the time domain equalization technology based on traditional transversal filter is un-able to deal with sever inter symbol interference(ISI). By joint design of receiver and transmitter,a fre-quency domain equalization algorithm based on data block transmission is proposed and its application pre-condition and implementation are introduced. The simulation result shows that the proposed algorithm can effectively resist inter symbol interference( ICI) in UWB communication system and it is a more realistic al-ternative for IR-UWB systems.