光纤线路中的菲涅尔反射使OTDR测试有盲区，文章对该盲区进行了定量分析。
Due to the Fresnel reflection in optical fiber links there will be dead zone existing in the measurement using OTDR. This paper gives a quantitative analysis of this so called dead zone.
系统的空间分辨率既可以直接测量，也可以通过测量光纤末端菲涅尔反射的半宽度来间接测量。
The spatial resolution of system can be measured directly or evaluated indirectly by the half width of the Fresnel reflection at the end of the fiber.
利用菲涅尔公式讨论了几种不同界面上线偏振光反射时的偏振态，分析了振动方位角的变化情况。
This paper analyzes the polarization of reflected light by Fresnel formula when linearly polarized light is incident on different interfaces, and discusses the change of vibration azimuth angle.
同抛物面反射器相比，菲涅尔区相位修正平面反射器的相位效率因子对天线效率的影响显著。
Compared with the parabolic reflector, a phase factor is of most importance in the efficiency evaluation of Fresnel zone phase-corrected plate (FZP) ones.
映射菲涅尔带是反射面上菲涅尔带在侧线上的投影。
The projection of the interface Fresnel zone is up to the acquisition line.
在毫米波波段，菲涅尔区相位修正平面（FZP）天线以轴向尺寸小、平面化结构、加工简单的优点，可以作为传统反射面天线的替代天线。
At millimeter-wave band, Fresnel Zone Plate (FZP) antenna has the advantages of simple structure, planar configuration and low cost, while giving performance comparable to the parabolic antenna.
由于这种叠加方法考虑到了地下反射面不同的几何状态，而且是在一个菲涅尔带内的叠加，所以此法更加接近实际的地下地质情况。
Because the stack considers different geometry of underground reflectors and is stack within the Fresnel zone, the method more approaches to real underground geologic situation.
在抛物柱面反射器上进行一维菲涅尔区相位修正结构设计 ，可以构成一类新型的点源馈电反射器。
The one dimensional Fresnel zone phase correcting principle can be applied to a cylindrical reflector to construct a new type of point source feeding reflector.
在抛物柱面反射器上进行一维菲涅尔区相位修正结构设计 ，可以构成一类新型的点源馈电反射器。
The one dimensional Fresnel zone phase correcting principle can be applied to a cylindrical reflector to construct a new type of point source feeding reflector.
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