High sensitivity, strong signal reflection characteristics, diffuse to overcome the interference of waves. 具高敏锐、强反射讯号特徵,克服漫射电波之干扰。
Based on principals of interference of acoustic waves and simplified digital delay-line, comb filter effect induced by superposition of reflections from steps is presented. 从声波干涉的基本原理出发,通过数字延时线的简化分析,说明了多级台阶反射声的叠加对声波频率产生的梳状滤波效果。
The standing waves of a given type arise from the interference of the system of travelling waves of that type. 一个给定类型的驻波来源于该类型的行波系统的干涉作用。
Diffraction is the bending, spreading and interference of waves when they pass by an obstruction or through a gap. 衍射就是指当波通过一个小孔,或者一个障碍物体,发生的波的弯曲、扩散和干涉的现象。
In this paper, I present three studies on high-frequency seismic attenuation and propose that the physical mechanism results from the interference of elastic microscopic multiple scattering waves. 通常认为地震波高频衰减的物理机制主要是滞弹性的吸收,本文通过如下三方面的研究认为地震波高频衰减的物理机制主要是弹性的微观多次散射波的相互干涉。
In the classical or semiclassical theory, a stationary wave can be considered as a standing wave formed by the interference of two propagating waves, whereas in quantum mechanics the stationary wave itself is a fundamental rather than a standing wave. 作为一种经典或半经典的观点,可以认为定态是由波的干涉形成的驻波.但在量子力学中,定态本身是基本的,不是驻波。
The result indicates that whereas the dynamical spectrum analysis can eliminate the interference of various waves and work out the reflection wave of strong discontinuity, the energy spectrum can directly reflect the existence and characteristics of deep and large faults. 结果表明,动态谱分析的方法能够排除杂波干抗,析出强的界面反射波;而能量谱则能直观地反映出深大断裂的存在及其特征。
The receiver array should meet the maximum space sampling condition and consider the influence of moveout of useful waves between the traces, and suppression of interference waves in maximum degree should be under the condition that the quality of received useful waves are not decreased; 接收道组合必须满足最大空间采样条件,并考虑有效波道间时差的影响,在保证记录到的有效波品质不降低的情况下最大程度地压制干扰波;
The dynamic principle of interaction between weak electromagnetic fields and living system& interference of electromagnetic waves in dynamic metabolism 弱电磁场与生命系统相互作用的动力学基础&生物代谢动态过程中的电磁干扰
But, the accuracy of the count is affected by many factors, mainly by the interference of the external electromagnetic waves and the generation of the multi cathode spots. 然而,脉冲计数的准确性受到很多因素的影响,分析认为主要是由外界电磁干扰和多斑点的产生引起计数的不准确。
Optical vortex generated by the interference of four plane waves 四波干涉形成光学涡旋
The experimental method of pulsed laser holography, which is applied to the study of stress waves in explosion, has been used in this paper. The holographic interference patterns of the surface displacements caused by stress waves in explosion, has been obtained in 3D model. 本文介绍了应用于爆炸应力波研究的脉冲激光全息实验方法:记录了三维模型中爆炸应力波引起的表面位移的全息干涉图:经对干涉条纹图的分析和计算。
Non-uniform Distribution of Interference Fringe Intensity on the Liquid Surface and the Attenuation Effect of Surface Acoustic Waves 液体表面波干涉条纹强度的非均匀分布及表面波的衰减效应
Due to the interference of diffraction waves, the processing and interpretation of Ground Penetrating radar ( GPR) data will become difficult and the precision and reality of their results will be also reduced. 在探地雷达(Ground-penetratingradar,简称GPR)剖面中,由于绕射波的存在,使得资料的处理解释十分困难,其结果的准确性与真实度也会降低。
Influence of the interference of odd and even waves on spatial correlation of nucleon pair 奇偶波干涉对核子关联的影响
The near-axial condition in interference of two light waves 双光束干涉中的近轴条件
The Realization of Adaptive Interference Cancellation of Microwave and Ultra-short Waves Communication 微波、超短波自适应干扰抵消器的实现
Demonstrating the interference of waves by Moire ′ fringes 用莫尔条纹演示波的干涉原理
The modulation in the refractive index of electromagnetic waves due to interference of two coherent propagating acoustic waves in the atmosphere is modeled by a periodic layered structure. 以电磁波折射率具有周期性变化的层状结构来模拟空气中两个相距较远的相干声源干涉形成的中心区域,研究了结构对电磁波定向反射的特性。
The main works and contributions can be summarized as follows: ( 1) Low frequency timing signal interference of ground waves and sky waves are studied. 作者所做工作及主要成果如下:(1)首先对低频授时信号天地波干涉问题进行了研究。
The simulation results show that when having the interference of sea wind, sea waves and currents both of them have significantly heading control effects than traditional PID algorithm. 仿真结果表明,此两种方法在存在海风、海浪和海流干扰情况下,都能达到明显的比传统PID算法好的航向控制效果。
In the field of nonlinear photonic lattice, Physical scientists use optical induction, the interference of two or more plane waves in a photosensitive material, to create a 2D photonic lattice in which the solitons form. 在非线性光子周期晶格领域中,物理学家使用光诱导法在感光物质中干扰两个或多个平面波去建立一个二维光子晶格。
There are four major problems for transonic wind tunnels to generate transonic airflow: Solving the air-logged condition; Generating the equably low supersonic airflow; Reducing or eliminating the wall interference of subsonic airflow; Reducing or eliminating the influence of the shock waves 'reflection. 跨声速风洞产生跨声速气流主要有四个问题:解决风洞的堵塞现象;产生均匀的低超音速流动;减少或消除亚音速洞壁干扰;减少或消除激波反射的影响。
The existence of these interference will reduce the quality of collected radar images, thus affecting the accuracy of waves parameters which extracted from radar images. 这些干扰的存在将降低采集的雷达图像的质量,从而影响到后续从雷达图像中提取海浪参数的准确性。