... 自然展宽(Natural line broadening) 多普勒展宽(Doppler broadening) 共振展宽(Resonance broadening) ...
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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In the second part two main velocity signal acquisition methods based on Doppler shift and Doppler bandwidth in OCT is described. Different signal processing in digital is introduced.
第二章介绍了OCT系统中速度信号获取的各种方法,主要包括多普勒频移法和多普勒展宽法,以及数字信号处理的相关内容。
参考来源 - 矢量多普勒OCT技术的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
在室温条件下测量了吸收光谱与正电子湮没辐射多普勒展宽谱。
Optical absorption spectra and positron annihilation radiation Doppler broadening were measured at room temperature.
这些结果展示了一些金属单质材料的双多普勒展宽谱随着电子结构变化而发生的变化。
The results show the relationship between 2-D Doppler broadening spectra and electronic structure of these elements.
当靶到阴极距离为几十厘米时，也可用于测量爆推靶内爆中子能谱多普勒展宽，从而确定等离子体离子温度。
The neutron streak image tube also can be used to determine the temperature of the plasma of the implosion of DT-filled targets by measuring the Doppler broadening.
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