多普勒扩展(Doppler Spread)指多普勒频谱不等于 零的频率范围。如果发送的频率为单频,频率为:f c ,接收信号的频谱为多普勒频谱,频率范围:f c - f d到f c + f...
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Doppler spread spectrum 多普勒扩频
doppler-spread 多普勒频移
Doppler-spread target 多普勒展宽目标
Doppler Spread Parameterization 多普勒展宽参数
spread Doppler 都卜勒频谱扩散
Doppler velocity spread Doppler速度展宽
Doppler frequency spread 多普勒频扩
Doppler spread destroys the orthogonality between OFDM sub-carriers. But at the same time, Doppler spread brings usable resources.
多普勒扩展破坏了OFDM系统载波间的正交性,但同时也带来了可以利用的资源。
参考来源 - 高速移动环境下OFDM系统关键技术的研究With the higher carrier frequency, faster movement speed and longer symbol duration, the Inter-Carrier Interference (ICI) caused by Doppler spread will be increased.
随着载波频率的提高,终端移动速度的加快以及符号长度的增加,由多普勒效应导致的载波间的串扰变得更加严重。
参考来源 - 快衰落信道下OFDM系统符号长度的最优化设计(英文)RTCE is based on forecasting the inherent vulnerabilities to propagation of HF time-varying channel, including multipath delay, Doppler spread, selective fading, interference, so this paper also introduces characteristics of HF channel in the beginning.
实时选频技术是基于对短波电离层时变信道固有的不利于电波传播的各种因素，包括信道的多径展宽、多普勒展宽、选择性衰落、噪声干扰等的预测的基础上实现的，所以在开篇对短波信道的特点进行了详细的介绍。
参考来源 - 海上高频自适应通信系统中的实时选频技术的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
There are severe Multipath Effects, Doppler Spread and noise in underwater acoustic channels.
水声信道存在多径效应、多卜勒频偏及各种噪声干扰。
Applying Doppler diversity in OFDM system can combat the effect of Doppler spread on system performance.
将多普勒分集技术应用于OFDM系统，可以有效地对抗多普勒扩展对系统性能的影响。
The ways of estimating the frequency offset and Doppler spread width in WCDMA system are studied in this paper.
本文主要研究了WCDMA(宽带码分多址)系统中频偏和最大多普勒频偏的估计方法。
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