查询词典 Doppler shift

Level lifetimes of ^131 Ce were determined by using the Doppler shift attenuation method.

大量的实验结果表明，N8的缺中子Ce(Z=58)同位素相对于γ形变是柔软的。

In OFDM system, for the use of a wide range of Doppler shift correction algorithm, the text summary of the algorithm.

详细说明：在OFDM系统中，针对多普勒频偏采用多种算法进行校正，该文总结了这些算法。

It turns out that the Doppler Shift also applies to light.

原来多普勒频移也是用于光

There are two classes of flow velocity estimation methods: Doppler frequency shift based methods and velocity—time delay based methods.

基于超声射频的血流运动估计方法主要有两大类：基于多普勒频移的流速估计方法和基于速度—时移的非多普勒方法。

The channel property of frequency selective fading and Doppler frequency shift are the biggest challenge to the broadband mobile communication service.

在信道的衰落特性中，对宽带无线移动业务影响最大的是多径衰落和多普勒频移。

This is the result of the Doppler shift, familiar to anybody who has heard the change of pitch of a train's whistle as it passes by.

这是多普勒效应的结果，正如大家熟悉的火车在经过时音高随之变化的汽笛声。

Moreover, the projectile X-rays have a Doppler shift and line broadening.The PX-AMS method is discussed in detail in this thesis.

文章对PX-AMS方法进行了详细的论述，建立了基于原子能科学研究院HI-13串列AMS系统的PX-AMS系统。

The frequency offset may be caused by many sources, Doppler shift or local oscillator error, for example.

这种频率偏移可能是由多个信源引起，例如多普勒频移或本机振荡器误差。

To measure the satellite oscillator frequency accurately is of great significance for transmitting time and frequency information by satellite,and the difficult point of the measurement is to deal with the Doppler frequency shift.

星载振荡器频率的测量对利用通信卫星进行标准时间和频率传递有重要的意义，测量的难点是多普勒频移的处理。

In this paper, started with the most elementary probability formula of Fisher matrix for time delay estimation, some properties of the Fisher matrix for time delay, Doppler shift and its hither derivatives joint estimation are exploited by use of Toeplitz matrix chracteristics in passive location systems.

本文从时延估计的Fisher矩阵的最基本概率表达式入手，利用Toerlitz矩阵性质，对无源定位中时延、多普勒及其更高阶导数联合估计的Fisher矩阵的性质进行分析。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"