散焦效应 meaning in English
defocusing effect
Examples
- It ' s well known that both thermal self - defocusing effect and reverse saturable absorption can lead to optical limiting
众所周知，热自散焦效应和反饱和吸收效应都能导致光限幅。 - According to the concept and basic form of svpsf , the cavity and duct scattering is examined , and a method is developed to remove the duct - induce dispersion effect
推演了典型非点散射结构?腔体结构的二维svpdf的具体形式，得到消除其散焦效应的积分变换域滤波方法。 - Setting forth the concept of scattering model mismatch , we make a detailed analysis of their effects on radar imaging , that is , resulting in one - and two - dimensional artifacts or dispersion in radar image which we view as a kind of focus - out effect on the focusing process in radar imaging
论文阐述了目标散射模型失配的概念及其产生根源，针对其在isar成像中造成的两维模糊展布现象，提出了二维等效散焦误差的概念，确立了以散焦效应的观点来系统描述和分析上述现象的理论基础。 - According to scattering phenomenology , we point out that the commonly used point scattering models fails to accurately describe the complex scattering behavior of real target . for that reason , based on the theory of effective scattering centers , researches are taken on more accurately physical - relevant description of target scattering and on approach that is more effective to characterizing and extracting target scattering features by means of time - frequency analysis and scattering centers modeling
全文以此为线索，以光学区散射中心理论为基础，分别从目标二维像的散焦效应、二维像的时频分析、以及二维散射中心的模型化这三个角度，探讨对目标复杂散射特性进行更为合理的描述和分析，并提取可用于识别的目标结构特征。 - The thesis analyzed the effects , associated with the propagation of laser in plasma channel , such as diffraction , plasma defocusing , the third - order intensity - dependent nonlinearity , the relativistic self - focusing , the focusing and defocusing of the plasma channel , and the absorbtion in the collision plasma and the finite pulse length effect
文中用哈密顿-雅可比方程方法和源展开方法分别对激光在等离子体隧道中传输所涉及的衍射效应、等离子体散焦效应、三阶强度非线性、相对论自聚焦、等离子体隧道的聚焦和散焦效应、碰撞等离子体中的吸收效应、有限脉宽效应等等做了基本的阐述。