The effects of temperature to phase, crystallization degree and aperture distribution are examined.
研究了温度对物相、结晶度和孔径分布等的影响。
The higher accuracy of measuring the Doppler frequencies, the less error of the aperture distribution.
多普勒频率的测频精度愈高,反演口径分布的误差愈小。
More - over, some important properties of optimal aperture distribution and diffraction pattern are also obtained.
本文还推导了最佳口径分布的若干重要性质。
The sorption agent has an integral type self-supporting metal oxide framework, high specific surface area and even aperture distribution.
该吸附剂具有整体式自支撑金属氧化物骨架结构,比表面积高且孔径分布均匀。
The third content of the paper is the method which implements the low side-lobe phased array antenna with different aperture distribution.
文中的第三个研究内容是不同口径分布实现相控阵天线方向图低副瓣的方法。
The analysis and correction of the errors on the method of reconstructing aperture distribution by using array weighting are given in this paper.
本文对阵列加权反演口径幅相分布的方法所引起的误差进行了分析,并提出校正方法。
Simulation results show that besides aperture distribution at element level and subarray level, the overlap ratio mainly decides the sidelobe performance.
仿真结果表明在子阵叠加结构中,除了在子阵级和单元级使用加权分布降低副瓣电平外,子阵叠加比决定了阵列的副瓣性能。
When a target is placed in the focal plane of a focused aperture antenna, the backscattered power from the target may be greatly enhanced by properly choosing the aperture distribution.
当目标处于聚焦天线焦平面上时,可通过选择口径分布来提高目标的后向散射功率。
The problem of calibration of aperture distribution and diagnoses of faults is very important to assure the proper performance of the radar in modern large active phased array radar systems.
现代大型相控阵雷达天线系统的口径分布和故障诊断对保证雷达的正确性能非常重要。
The aperture field distribution of the ring focus antenna is reviewed in view of the energy conservation law, and the simple formula for calculating its radiation pattern is deduced.
该文从能量守恒观点出发,讨论了副面为椭圆的环焦天线的口径场分布,并导出了计算其方向图的简单表达式。
The energy distribution of far field spot for annular aperture Gaussian beam is discussed and the fitting expression is given.
讨论环形孔径高斯光束的远场光斑能量分布,并给出拟合表达式。
Many formulae used to calculate fixed phase distribution for the array lens, configuration curve of the dielectric lens and aperture phase of a feed phased array are derived.
给出了计算阵列透镜配相、介质透镜外形曲线和平面相控阵天线孔径相位的若干计算公式。
The system can also be applied to measurement of numerical aperture of polymer optic fiber and characterization of the refractory index distribution.
该系统也可实现聚合物光纤数值孔径的测量和折射率分布的表征等。
Secondly, on the assumption that the phase error on the aperture led by the random surface error obeys the Gaussian distribution with zero mean, the expression of the average power pattern is deduced.
然后在设定由随机表面误差引入的口径相位误差服从均值为零的正态分布的条件下,推导了天线平均功率方向图的计算公式。
The reflectivity measurement system makes it very easy to measure reflectivity distribution on large aperture components.
该系统的使用大大简化了元件表面反射率分布的测量。
For the focusing current distribution over the antenna aperture, the authors have got the field distribution diagrams of the focus and around it.
对于天线口面上的聚焦电流分布,求得了聚焦点及其周围附近的场分布。
The axial intensity distribution of Hermite-cosh-Gaussian (HChG) beams passing through a system with the aperture and lens separated is studied numerically.
对双曲余弦高斯光束通过光阑透镜分离系统的轴上光强分布做了详细的数值分析。
The Angle of conical structure and the distance of round aperture were adjusted, the structure and production of distribution blade of blender were improved.
调整了筒体倒锥体的角度及环缝隙的距离,并改进了搅拌器的分散叶片的结构和制作。
The near-axis field distribution of circular aperture antennas is obtained by numeric integration method.
采用数值积分方法分析了圆口径天线非轴向近场分布特性。
In the internal capsule, the distribution of microvascular has the same direction with the nerve fibre, and the diameter of the microvascular is wider, the aperture of meshes is larger.
内囊中微血管分布多与神经纤维走行方向一致,其管径较粗,网孔较大。
We considered intensity distribution of light focused by a high numerical aperture lens without spherical aberration through a planar interface between materials of mismatch refractive index.
采用光的矢量衍射理论 ,研究了场振幅为高斯分布的平面波入射到无球差高数值孔径物镜上 ,折射率失配对共焦显微术的影响 ,并进行数值模拟。
The near field properties of circular aperture antennas with Gaussian amplitude distribution are analyzed by the aperture field integration method in this paper.
采用口径场法对具有高斯幅度分布的圆口径天线辐射近场进行了分析。
On the basis of field geology survey, the probability distribution function of joint aperture is fitted and the availability of the fitting is verified.
在现场地质调查的基础上,对节理开度的概率分布函数进行了拟合,并进行了假设分布的有效性检验。
The diffraction modulation of ultrashort pulsed-laser is less than that of CW laser, so only serrated aperture can be used to get uniform near-field uniform intensity distribution.
和单色激光的衍射不同,宽带的飞秒光束衍射调制较小,直接利用锯齿光阑,便能获得近场光强分布相对均匀的光束。
This paper deals with an investigation of intensity distribution of the partially coherent Bessel beams focused by an aperture lens.
研究了部分相干贝塞尔光束经过光阑透镜聚焦后的光强分布。
In this paper, a new method, which USES only one phase aperture to obtain uniform distribution from Gaussian beam, is proposed, the calculation results are given.
本文提出只用一个简单的相位光阑实现高斯光束强度均匀化的新方法,给出了计算结果。
The light intensity distribution of diffraction of circular aperture was investigated by numerical analysis.
利用数值分析的方法分析了由边界波理论公式所得的圆形光阑衍射场的光强分布。
The light intensity distribution of diffraction of circular aperture was investigated by numerical analysis.
利用数值分析的方法分析了由边界波理论公式所得的圆形光阑衍射场的光强分布。
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