查询词典 constructive interference

The gauge block surface under test is imaged by the interference microscope. The interference image is acquired and transmitted to the computer by the digital CCD video camera. Digital image processing technology is used to extract the edge contour line and midline of the interference dark fringe.

待测量块表面经干涉显微镜所成的干涉图像由数字CCD 摄像头采集并传输到计算机中，利用数字图像处理技术，对干涉条纹的边缘和中线进行提取，计算出量块表面粗糙度评定参数。

Rapid transient electromagnetic pulse generated by impulse voltage discharge may cause serious interference to high voltage measurement, cause disoperation or damage to experimental equipment, and also may cause potential harm to person on-site. Similar question exist in many high voltage laboratories, and it is an important research subject of high voltage measurement. Electromagnetic interference generated by impulse voltage discharge is the most serious interference in high voltage test hall.

冲击电压放电产生的快速暂态电磁脉冲可能对高压测量造成很大的干扰，引起设备的误动或损坏，也可能对人身造成潜在的危害，类似的问题在许多高电压实验室均存在，是高电压测试技术中的一个重要研究课题，冲击电压放电产生的电磁干扰是高电压试验大厅设备中最严重的，随着电子测量控制设备和高参数试验设备的日益增多，这个问题在高电压实验室已经十分突出。

This paper presents a review of studies of interference absorbing materials,which come in three basic types:normal interference absorber,Jauman absorber and FSS absorber. And we particularize the structures,applications and methods of analysis and design of each of these types. Results show that the FSS absorber provides a better absorption ability and is more practicable,and that active multi-layer FSS absorber represents a new direction of interference absorbing material research.

综合介绍了干涉型多层吸波材料的吸波原理及其国内外研究现状，并分别研究了干涉型多层吸波材料三种基本类型：一般干涉型吸波材料、Jauman吸收体和频率选择表面吸收体的一般结构、应用以及分析与设计方法，得出FSS吸收体较之其他类型具有更优的吸收性能和更高的实用价值，最后指出了干涉型吸波材料发展的新方向是有源FSS吸收体。

This paper presents a review of studies of interference absorbing materials, which come in three basic types: normal interference absorber, Jauman absorber and FSS absorber. And we particularize the structures, applications and methods of analysis and design of each of these types. Results show that the FSS absorber provides a better absorption ability and is more practicable, and that active multi-layer FSS absorber represents a new direction of interference absorbing material research.

综合介绍了干涉型多层吸波材料的吸波原理及其国内外研究现状，并分别研究了干涉型多层吸波材料三种基本类型：一般干步型吸波材料、Jauman吸收体和频率选择表面吸收体的一般结构、应用以及分析与设计方法，得出FSS吸收体较之其他类型具有更优的吸收性能和更高的实用价位，最后指出了干涉型吸波材料发展的新方向是有源FSS吸收体。

To avoid the problems of the classical interference imaging spectrometer ,such as poor stabilization,and intractable interference fringes,a novel polarization interference imaging spectrometer based on a new adjustable lateral displacement Savart polariscope is developed.

为了克服传统成像光谱仪稳定性差，干涉条纹杂乱复杂等缺点，提出了一种基于可调横向剪切量萨伐尔偏光镜的新型偏振干涉成像光谱仪。

When parallel laser beam is irradiating the bubble in the prism, circular interference fringe is produced in the far-field. Based on the far-field theoretical model, the angle position of interference fringes outside the prism is measured with spectrometer and converted into the angle position of interference fringes inside the prism according to Snell's law and then bubble diameter is calculated with computing software Mathematica, the relative difference of which is 0.2%.

平行激光束照射到棱镜中的气泡时，在远场将产生圆环状干涉条纹，利用气泡远场干涉理论模型，使用分光仪对三棱镜外干涉条纹角位置进行测量，由折射定律换算为棱镜内干涉条纹角位置，进而使用计算软件mathematica计算出气泡直径，其相对差为0.2%。

Firstly, the performances of linear and nonlinear algorithms based on interference estimator/subtracter are compared. Secondly, a novel interference suppression algorithm based on subspace tracking is proposed for the tone interference model. Finally, the stability performance of the transform domain normalized least mean square adaptively implementing structure of minimum bit error ratio receiver is analyzed.

总结和比较了基于AR干扰模型的各种干扰估计抵消算法性能；从音调干扰模型出发，提出一种新的基于子空间跟踪的时域干扰抑制技术；讨论了基于低速数字干扰等效"虚拟"多用户干扰模型的最小误码率接收机的变换域归一化最小均方自适应实现结构及其稳态性能。

Secondly, 4 methods of azimuth estimation based on vector hydrophone according to forms of nosie and signal are brought forward. The principles of these 4methods are set forth, simulating them by computer. Acoustic intensity averager can effectively suppress isotropic non-coherent interference; DOA based on line-spectra can effectively detect the target radiating line-spectra and estimate its azimuth angle; Bar graph approach can suppress line-spectra coherent interference and distinguish different targets radiating line-spectrum. Weighted bargraph approach can detect target in broadband coherent interference and estimate its azimuth angle.

其次，根据背景干扰和信号样式的不同，提出了单矢量水听器方位估计的4种方法；阐述了这4种方法的原理，并进行了计算机仿真，指出平均声强器方位估计适用于各向同性噪声场背景干扰，讨论了平均声强器的处理增益；目标辐射噪声中有线谱时，线谱方位估计有很好的性能，其中的LOFAR线谱和高频解调得到的DEMON线谱都是目标的特征谱线，可以利用它们进行方位估计，详细讨论了利用特征线谱单个矢量水听器分辨多目标的性能；直方图方位估计能抗强线谱相干干扰；加权直方图方位估计可以抗宽带相干干扰。

Furthermore, the brain area of anterior cingulated cortex revealed different response type under emotional and non-emotional interference condition, i.e, activation of ACC in color-word Stroop task was enhanced along with increasing of cognitive conflicting interference. Yet in emotional Stroop task, activation of ACC is reduced when the negative emotional interference was enhanced. This phenomenon suggests that ACC possess a flexible conflict monitoring mechanism and adaptive mechanism, thus providing evidence for the theory that ACC plays an important role in the cognitive and emotional interaction.

其结果显示，背侧前额叶、前扣带回是共同参与情绪与非情绪干扰的执行抑制的脑区，其中，前扣带回在情绪与非情绪干扰两种条件下出现不同类型的反应方式，即前扣带回在色字Stroop作业中随认知冲突干扰梯度的增加而增加，但在情绪Stroop作业中随负性情绪干扰梯度的增加而减少，体现出前扣带回具有灵活的冲突监控与适应性机能，支持前扣带回在认知与情绪交互作用中扮演重要角色的理论。

This dissertation comprehensibly researches the performance of hybrid DS/FH spread spectrum communication systems, operating in a combined additive white gaussian noise , multiple access interference, and channel fading, particularly operating in hostile interference (partial band interference and multitone jamming). At the same time, the dissertation investigates performance of forward error correction coding and diversity technology against channel noise.

本文以此为背景，较为详细地研究了在信道中出现各种噪声干扰（高斯白噪声、多址干扰和信道衰落），特别是敌方的人为干扰（部分带宽噪声干扰和部分带宽多频干扰）时，混合DS/FH扩频通信系统的性能，以及前向纠错信道编码和分集技术对混合扩频通信系统信道出现噪声干扰时系统性能的改进情况。

Analog output can display output results.

可以模拟输出显示输出效果。

It implied that RAPD technique pro vided a new alternative for checking irradiation induced effects.

对扩增产物进行数据分析，结果表明RAPD技术能够检测出辐射后唐菖蒲基因组变异情况，可用于对唐菖蒲辐射后基因变异的分析。