1) apodization
变迹术
1.
Axial Superresolution in Optical Coherence Tomography Through the Combination of Apodization and Coherence Gating;
利用变迹术和相干门相结合实现光学相干层析成像术轴向超分辨
2.
The application of an appropriate apodization film to an ordinary lens makes the point amplitude response asymptotic to a Diracdelta function, or causes an arbitrarily narrow depth of focus.
运用适当形式的光瞳滤波器(变迹术)可以改变成像系统点振幅响应的分布,使其具有类似于冲击函数(Dirac-delta函数)的形式,这样就有可能实现光学超分辨,但变迹术的运用往往会因其强烈的旁瓣效应而导致成像系统对比度的急剧下降。
3.
In confocal scanning imaging system, using apodization can improve the system resolution.
给出了在反射式光纤共焦扫描成像系统中 ,利用变迹术提高系统分辨率的原理 ,并做了相应的对比实验 。
2) apodization
变迹
1.
Inverse matrix algorithm, is used to simulate the aptitude apodization and m.
采用伪逆矩阵算法,对变迹技术和多焦点技术进行计算机模拟,为焦域控制提供了新的思路,结果表明:将电子聚焦阵列换能器用于高强度聚焦超声治疗设备,比其它聚焦方式有更多的优越性,但实际设计中也存在一些相互矛盾的条件,设计中需要设计者仔细权衡利弊,做出合理设计方案。
2.
The optical characteristics of linearly chirped fiber grating with gaussian functions and no-apodization are compared and analyzed.
在选择一定参数的情况下,对高斯变迹线性啁啾光纤光栅的光学特性进行了仿真,并与未变迹的线性啁啾光纤光栅的光学特性进行了对比分析,给出了Matlab仿真程序的原代码。
3.
It is pointed that the apodization of the fiber grating by using Moiré effect is a pure apodization because the Moiré effect makes the index modulation amplitude in both positive and negative sides and keeps the average index unchanged.
从理论上分析了利用莫尔效应进行变迹所引起的光纤光栅反射谱和色散特性的变化 ,指出由于莫尔条纹状的折射率调制使平均有效折射率在光栅区维持不变 ,所以可以实现纯变迹。
3) Apodized
变迹
1.
Through changing the length of the grating,modulating the amplitude of the refractive index,changing the apodized functions,changing the chirped parameters we can get different reflective spectrums with different reflective peaks and bandwidths.
随着取样光栅各参数的变化 ,得出均匀取样光栅、变迹取样光栅、啁啾取样光栅的反射光谱特性 。
2.
A new optimum design method of apodized and chirp fiber Bragg grating is proposed.
提出了一种优化设计变迹啁啾光纤Bragg光栅的方法。
4) fission track dating
裂变径迹定年技术
5) soot foil technique
烟迹技术
1.
The detonation cellular structures caused by C_5~C_6 cloud fuel mixtures are studied under the initial atmospheric pressure and room temperature by improved soot foil technique.
改进烟迹技术之后,在初始为常温常压的条件下,进行了碳氢混合燃料(C5~C6)的气云爆轰胞格结构实验研究,得到了清晰的胞格烟迹记录,同时讨论了燃料气云的当量比和起爆能对胞格结构的影响。
6) Artistic orbit
艺术轨迹
补充资料:变术
1.指出敌不意的战术。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条