effective aperture
英 [ɪˈfektɪv ˈæpətʃə(r)]
美 [ɪˈfektɪv ˈæpərtʃʊr]
有效口（孔）径
双语例句
- The parameters of triple Fabry-Perot etalon, namely, free spectral range, spectral width, peak offsets between each etalon, effective aperture and so on are optimized.
优化了三通道法布里-珀罗标准具的自由谱范围、带宽、峰值间隔和有效口径等参数。 - Determination of effective aperture and estimation of truncation energy in synchronous three-channel optical system for laser warning
同步三通道激光告警光学系统有效孔径的确定及截获能量的估算 - Many combinations of effective window aperture were included in the regression data set used to find the FFs coefficients.
许多组合的有效窗口光圈中列入了回归的数据集用来寻找农民田间学校系数。 - In this paper, it is reported that we have first time measured the FFP, NFP and the Effective Area of single mode fibers with difference Refractive Index Profiles by the Variable Aperture Technique.
本文介绍用可变孔径法测试出各种折射率剖面结构的单模光纤的远场和近场分布，以及这些光纤的有效面积。 - The field distribution is showed and the effective area 、 numerical aperture of PCF are calculated.
分析了光子晶体光纤的模场分布特点，计算了光纤的有效模场面积、数值孔径。 - At last, the effective means of control the aperture of porous glass microsphere as well as the means of increasing the adsorption amount of porous glass microsphere is proposed.
总结出了多孔玻璃微珠孔径的控制方法和提高多孔玻璃微珠的吸附量的有效方法。 - Determination of the optical system parameters such as the spot shape and size, the effective aperture, the field of view and the focal length is the precondition to perform optical design of the star sensor.
确定光斑形状和大小、光学系统有效通光孔径、视场和焦距等参数是进行星敏感器光学设计的前提。 - External calibration is an effective way to calibrate absolutely the synthetic aperture radar ( SAR) system, but the external calibration method used for conventional SAR system cannot be implemented for low frequency ultra wideband ( UWB) SAR system.
外部校准是实现合成孔径雷达（SAR）系统绝对定标的有效途径。常规SAR外部校准方法不适用于低频超宽带SAR系统。 - Effective Feature Extraction Algorithm for Spotlight Synthetic Aperture Radar Images
一种有效的聚束式合成孔径雷达图像特征提取算法 - Effective Radius and Effective Numerical Aperture of the Self& Focusing Lens Array
自聚焦透镜的有效半径和有效数值孔径 - The effective aperture of that binary optical element is 10mm × 10mm.
该二元光学器件的有效孔径为10mm×10mm。 - The measurement method used in this paper can also be applied to measure the gain and the effective aperture of other antennas.
该测试方法也适用于其他天线的增益和有效面积的测量。 - Measurements show that the lens has no spherical aberration across the total effective aperture of 8 mm, and for a 4 mm-width beam and a lens with 20 mm focal length, the width of the focus is about 4 μ m.
实验测试结果表明，短程透镜在通光孔径8mm内消球差，对4mm宽的平面波束，焦距20mm的短程透镜，其焦点束斑宽度小于4μm。 - Discussions on two limitation cases show that the 2D-FRFT can provide a uniformly effective tool for the computation of aperture radiation both in Fresnel and in Fraunhofer regions.
对于两种极限情况的讨论，表明二维FRFT可以一致地适用于Fresnel区和Fraunhofer区辐射场的表示。 - The technology of the concave hyperbolic primary mirror of the effective aperture 2.16 m astronomical telescope
通光口径2.16m天文望远镜凹双曲面主镜的磨制工艺 - Measuring and studying the effective area of single mode fibers by the variable aperture technique
用可变孔径法测试研究单模光纤的有效面积 - Measurement of effective aperture for an open-ended waveguide
开口波导有效接收面积的测量 - Research on fused silica microlens arrays with high effective aperture ratio
高有效孔径比面阵石英微透镜阵列研究 - At the same time, this method adopts passive synthetic aperture technique to expend the effective aperture using the line-spectrum composition of the ship noise's low frequency, consequently attains the azimuth resolution of large physical aperture towed line array using small physical aperture towed line array.
利用舰船噪声低频段的线谱成分，采用被动合成孔径技术实现有效孔径的扩展，从而以小物理孔径的拖线阵达到大物理孔径拖线阵才具有的方位分辨力。 - It is proved herein that the effective array aperture is 2N-1 ( N> M) when M-element MRLA is adopted.
当采用M阵元最小冗余线阵时，该算法的等效阵列孔径为2N－1（N＞M）。 - Its practicality effective aperture ratio has been improved to about 92.8%, consequently the concen-tration efficiency of microlens array is increased.
其实测有效孔径比可达到92.8%，极大提高了微透镜阵列的聚光效率。 - The results of processing measurement data show this method is very effective, and the processing speed is enhanced greatly comparing with general synthetic aperture imaging method.
通过对实测数据进行处理，结果表明，所提快速实现方法的成像效果与普通实现方法的成像效果相当，而处理速度与普通实现方法相比有了极大的提高。 - The basic factors affecting collimating characteristic are off-axis magnitude, effective aperture and emission position on the focal plane of off-axis parabolic mirror.
影响离轴抛物镜准直特性的主要因素有离轴量，有效孔径和焦面出射点的位置。 - A novel method of aperture extension is presented to decrease computation cost of the Music-like method which is effective in aperture extension.
针对Music-like方法能很好地扩展阵列孔径，但计算量较大的问题，提出了一种虚拟阵列扩展的新方法。 - In recent years, complex pupil distribution has been widespread concerned, it may increase the effective aperture of optical system and improve the resolution based on an existing optical design, processing, manufacturing, so complex pupil has very broad application prospects.
复杂光瞳分布近年来受到了广泛的关注，它可以在现有的光学设计、加工、制造的基础上增加光学系统的有效口径，提高分辨率，具有十分广阔的应用前景。 - Based on the finite element method, we have studied the mode effective area, mode field diameter, numerical aperture, nonlinear coefficient and dispersion characteristics of Yb-DC-PCF.
基于有限元法对Yb-DC-PCF在0.8um-1.2um处的的模场有效面积、模场直径、数值孔径、非线性系数、色散等特性进行研究。 - The second one is based on three parallel minimum-redundancy linear arrays, which use less number of array elements to obtain a larger array of effective aperture. The estimation performance in low SNR can also be improved.
二是基于三平行最小冗余线阵阵列排布形式，用较少的阵元数获得了较大的阵列有效孔径，也可改善算法在低信噪比条件下的估计性能。 - The CDM can break through the limit of existing manufacturing level of DM, achieving the increase of effective correction stroke of DM and the density of drive device with the same effective aperture.
组合变形镜突破了变形镜现有制造水平的限制，可以实现变形镜的有效校正行程的增加和相同有效口径内驱动器密度的增大。 - For the detection and localization of acoustic targets, one of the most effective ap-proaches is through Synthetic Aperture Sonar ( SAS) imaging.
合成孔径声纳（syntheticaperturesonar-SAS）成像是水下目标探测与定位的一种有效手段是。 - Using the same software at the same time total internal reflection photonic crystal fibers was simulated by calculating its effective refractive index, the normalized frequency and numerical aperture parameters.
同时利用同样的软件对全内反射型光子晶体光纤进行了模拟，通过计算对其有效折射率，归一化频率以及数值孔径等参数进行了具体的分析，为今后的实验研究提供了数据参考。