查询词典 Doppler shift

The simulation shows that STFMPC signal is sensitive to Doppler frequency-shift,and its ambiguity function has one aiguille at the origin and four symmetrical right-angle set-squares with the aiguille as their common spindle.

通过计算机仿真，结果表明该信号是多普勒敏感信号，其模糊函数为在原点的1个尖峰和4个以尖峰为公共轴的有一定厚度的对称直角三角板。

Experimental results show that the method can accurately detect carrier Doppler frequency shift.

结果表明，相位测量方法能精确地测出载波多普勒频移且速度更快，完全能满足后续跟踪环的要求。

In the condition of long pseudo code and large carrier Doppler frequency shift, the number of FFT points in the conventional synchronous acquisition algorithm is too large, the complex multiplication is of high computational complexity and large time cost, and the parameter evaluation acquired in a long duration is not applicable for carrier tracking because it is too old.

当伪码较长、载波多普勒频移较大时，传统的同步捕获算法进行的FIT点数较多，复数来加运算量大，耗时长，而在校长的捕获时间内，捕获得到的参数估计过于陈旧，无法应用于载波跟踪，为此，文中提出了一种改进的快速同步方法。

Laser Doppler Velocimeter:the two times Dopper effect for the scattered light from the tracing particle, the formula of LDV, laser heterodynes measurement, dual beam differential mode, LDV signal processing, frequency shift technique and application, multi-dimension velocity measurement, LDV application while light is refracted.

三。 激光多普勒测速：运动粒子中散射光的二次多普勒效应（1），LDV基本公式(1)，光外差检测技术及其实现(1)，双光束差动模式(1)，LDV信号处理(3)，频移技术及其应用(5)，多维速度的测量(5)，有折射现象时LDV的应用(3)，LDV测量实例(1)。 LDV实验一：LDV光路实验（3） LDV实验二：LDV测水流场实验（3）四。

The red shift is produced not only by the Doppler Effect, but also by the gravitational field .

除了多普勒效应产生的红移外，在引力场的影响下也会产生红移。

This phenomenon is known as the Doppler frequency shift.

这种现象被称为多普勒频移。

In addition, for the Doppler frequency shift induced by the platform continuous motion, this paper also analyses its effect on imaging.

另外，对于平台连续运动引入的多普勒频移，该文也分析了其对成像造成的影响。

In certain wireless channel, the Doppler frequency shift will be caused by wireless channel output signal aliasing.

在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。

It almost always uses the doppler frequency shift for detecting moving targets or for measuring

也常常用多普勒频移测移动的目标或者是测量。

Whats more, LFM signal is insensitive to Doppler frequency shift, whichmeans the signal processing is easy.

论文研究了线性调频脉冲信号的特征及其数字压缩技术，进行了理论分析仿真。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了