1) Frequency Shift
频移
1.
Enhancement of magnetoimpedance by magnetic field-induced frequency shift;
利用磁致频移提高磁阻抗效应
2.
The particle property of light and Doppler frequency shift;
光的粒子性与多普勒频移
3.
Experimental study of frequency shift of reflected microwave from laser-induced plasma
激光等离子体对反射波频移影响的实验研究
2) spectral shift
频移
1.
Based on the transport theory of partially coherent Gaussian Shell model(GSM) spatial photonic soliton in the media with logarithmic-distributed nonlinear refraction rate,the evolvement properties of relatively centric spectral shift of the frequency spectrum is analyzed at length when there is line breadth of spectrum distribution.
以部分相干的高斯-谢尔模空间光孤子在非线性折射率呈对数分布的介质中的传输理论为基础,详细分析了当考虑频谱分布有一定线宽时,频谱的相对中心频移演化特性,并且对考虑频谱分布后孤子的稳定性进行了相应的分析。
2.
The evolution of the spectrum shows that spectrum splitting and spectral shift occur during the propagation in anomalously dispersive media.
研究结果表明,部分相干GSM光束在负色散介质中传输时会出现光谱分裂和频移现象。
3.
At the same time,analyzed here is the spectral shift of partially coherent twisted anisotropic GSM beams in Gaussian optical resonator.
利用部分相干光的张量ABCD定律,采用解析的方法研究了部分相干的非轴对称高斯-谢尔模(GSM)光束在高斯型光腔内的频谱演化特性,结果表明非轴对称GSM光束的相对频移与振荡的次数以及光腔的参数有关。
3) frequency-shift
频移
1.
Based on the nonlinear Schr?dinger coupling equation,through the numerical simulation,investigate the frequency-shift phenomenon of femtsecond pulse in photon crystal fibers.
基于耦合非线性薛定谔方程,通过数值模拟,研究了飞秒脉冲在光子晶体光纤中的频移现象。
4) frequency shifting
频移
1.
The frequency shifting and beam deflection of the Bragg acoustooptic interaction in cascade is analyzed according to general Bragg acoustooptic interaction theory.
根据声光互作用的一般理论 ,对不同的声光互作用条件下 ,级联布喇格声光互作用的频移和光束偏转进行了分析。
5) frequency-shift
移频
1.
Remote sensing image fusion method based on wavelet packet frequency-shift;
基于小波包移频算法的遥感图像融合技术
2.
Design of detector for frequency-shift track signal;
移频轨道信号测试仪的设计
3.
A plan of frequency-shift equipment with microcomputer on railway signal is proposed, which replace the old frequency-shift equipment.
介绍了一种以单片机为核心实现铁路信号移频发送设备电子化的方案 ,用来替代由分离元件构成的移频发送盒 ,从方案设计思想、设备的硬件组成框图和软件设计流程等方面进行了详细的论述 。
6) shifting frequency
移频
1.
Research and Development of the monitor system of shifting frequency signals;
移频信号监测系统的研究与开发
2.
In terms of the disadvantages of the two presently comparatively advanced interval automatic blocking technologies: ZPW-2000A jointless shifting frequency automatic blocking and microcomputer axle counter technology,this paper combines them based on actual projects to complement each other so as to improve the efficiency and safety of rail transport.
针对ZPW-2000A型无绝缘移频和微机计轴这2种目前比较先进的区间自动闭塞技术的弊端,结合工程实际,将二者结合起来,互相弥补不足之处,以改善区间列车的行车效率及安全性。
补充资料：多普勒频移
多普勒频移
物理学术语。又称“多普勒频率”。由多普勒效应引起发射频率与运动目标反射波或散射波信号频率之间的频差。反射体引起的多普勒频移(fd)与发射频率(fs)的关系式为fd=(2Vcosθ)·fs，C为声速，V为反射体的运动速度，θ为反射体运动方向与声束指向之间的夹角。取超声诊断中的典型数据可算得血流。胎心检测中的多普勒频移(fd)均在声频范围之内，因此这类诊断仪器均可采用扬声器来监听。
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