1) Intercarrier Interference(ICI)
载波间的相互干扰
2) inter-carrier interference
载波间干扰
1.
According to spectrum theorem,two components of phase noise were analyzed:common phase error and inter-carrier interference.
由于采用子载波间相互正交的结构,OFDM系统对于由本地振荡器不稳定性所导致的相位噪声影响非常敏感,针对公共相位误差CPE和载波间干扰ICI两种影响表现形式不同的干扰项,从功率谱密度函数这一独特角度分析了相位噪声对OFDM系统性能的影响,提出了旨在提高接收机抵抗相位噪声能力的OFDM系统关键参数优化与设计准则,可在对所设计OFDM系统性能加以提高的同时,有效降低对接收机前端模拟振荡器件和相位噪声抑制单元的性能指标要求,从而降低接收机硬件实现成本。
2.
The inter-carrier interference caused by double-selective channels in OFDM systems was analyzed.
对OFDM(orthogonal frequency-division multiplexing)系统中由于时频双选信道产生的载波间干扰进行了分析,并在此基础上提出了一种新的OFDM导频符号结构及信道估计方法,从而实现了在一个OFDM符号内时域信道估计和干扰抵消。
3.
However,in high mobility environment,the performance degradation due to inter-carrier interference(ICI) of OFDM is a key problem.
然而在高速移动环境中,OFDM系统的子载波间干扰是影响系统性能的主要因素,为了使OFDM技术更好地应用于B3G系统,对高速移动环境中OFDM系统的接收技术进行了研究,提出了一种基于EM算法的联合信道估计与检测技术的迭代接收方案。
3) inter-carrier interference(ICI)
载波间干扰
1.
In high-speed mobile environment,the inter-carrier interference(ICI) caused by the Doppler effect degrades the performance of the orthogonal frequency division multiplexing(OFDM) system.
针对高速移动环境下多普勒效应引起的载波间干扰严重影响了正交频分复用系统的性能问题,提出了新的基于时域干扰自消除的载波间干扰抑制算法。
2.
It is shown that sampling frequency offset can lead to amplitude attenuation and Inter-Carrier Interference(ICI) due to the loss o.
结果表明,采样频率偏差会引起信号幅度衰减和子载波间干扰(Inter-Carrier Interference,ICI),导致系统信噪比性能下降;这种影响与子载波位置有关,还会随着OFDM符号数的增多而加剧。
3.
In order to reduce severe effects of inter-carrier interference(ICI) in Orthogonal Frequency Division Multiplexing(OFDM) system caused by time variance of the channel,the time domain ICI self-cancellation(TDISC) scheme and the pilot assisted sub-optimal combination TDISC algorithm were proposed.
为了降低信道时变造成的载波间干扰(ICI)对正交频分复用(OFDM)系统性能的影响,提出了基于时域干扰自消除(TDISC)的ICI抑制方案和基于导频辅助估计的次优合并TDISC算法。
4) intercarrier interference
载波间干扰
1.
By analyzing the effect of phase noise on the OFDM system, it is found that phase noise results in not only common phase error (CPE) but also intercarrier interference (ICI) that degrade the performance of the OFDM system.
分析了相位噪声对正交频分复用(OFDM)系统的影响,发现相位噪声不仅产生通用相角错误(CPE),而且还会产生载波间干扰(ICI),这都使OFDM系统的性能急剧恶化,因此必须对CPE和ICI进行校正。
2.
Meanwhile,CFO estimation error caused by intercarrier interference is removed by using an improved iterative residual CFO estimation method.
基于相关编码正交频分复用(OFDM)系统,提出了一种新的数据辅助载波频偏估计技术,利用相关编码OFDM系统的频域幅度特性估计载波频率偏移,增大了频偏估计的跟踪范围,同时采用改进的迭代估计剩余频偏方法,消除载波间干扰对频偏估计的影响,提高了估计精度。
3.
Channels′ variations also destroy the orthogonality between subcarriers,resulting in intercarrier interference(ICI),which increases an irreducible .
首先计算和分析了接收信号不同分量的功率(期望信号、载波间干扰、噪声),然后给出了16-QAM正交频分复用系统的误比特率。
5) ICI
载波间干扰
1.
Intercarrier Interference(ICI) Cancellation by Time-Equalization in MIMO-OFDM Systems;
MIMO-OFDM系统载波间干扰的时域消除
2.
For inter-carrier interference(ICI)due to frequency offsets,this paper studies a new ICI self-can- cellation scheme for combating the impact of ICI on OFDM systems.
针对频偏引起的正交频分复用(OFDM)系统中载波间干扰(ICI)的问题,提出一种改进的ICI自消除方案。
3.
OFDM is one of core technologies of the fourth generation mobile communication system,and in its basic system,orthogonal loss among carries would lead to the production of Inter-carrier Interference(ICI).
OFDM(正交频分复用)是第4代移动通信系统的核心技术之一,在OFDM基本系统中,各载波间正交性的损失会导致ICI(载波间干扰)的产生。
6) Inter-Carrier Interference (ICI)
载波间干扰
1.
Performance degradation due to Inter-Carrier Interference (ICI) resulted from channel Doppler effects is significant for Orthogonal Frequency Division Multiplexing (OFDM) when used in mobile communication systems.
正交频分复用(OFDM)应用在移动通信系统中时,信道多普勒效应造成的载波间干扰(ICI)是引起性能 下降的重要原因。
补充资料：电力线载波保护复用载波机
电力线载波保护复用载波机
multi purpose PLC equipment for teleprotection system
d一onl一x一on zolbo boohu fuyong 20一boJ-电力线载波保护复用载波机(multi purposePLC equiPment for teleProteetion system)见电力线载波机。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条