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1)  frequency difference
频率差
1.
The key technique to obtain high-precision data of the output frequency difference;
获得高精度频率差的关键技术
2.
This article proposed uses based on mutually the Cross Ambiguity Function(CAF) time difference and the frequency difference union estimate law,but accurately carries on the estimate to in the distributional satellite signal receive time difference and the frequency difference,has suppressed the background noise influence effectively.
文章提出采用基于互模糊函数(CAF)的时间差和频率差联合估计法,可准确地对分布式卫星信号接收中的时间差和频率差进行估计,有效地抑制了背景噪声的影响。
3.
However,how to obtain the precise frequency difference still remains challenge.
要想精确测量出瞬时频率差,就要求实现初始频率和当前频率的运算,初始频率的保持是测量过程关键。
2)  beat frequency meter
差频频率计
3)  Slip Frequency
转差频率
1.
The Design of Slip Frequency Controlled VVVF System Based on Microcontroller;
基于单片机的转差频率控制变频调速实验系统设计
2.
Stator-flux-orientated slip frequency control for induction motor;
异步电机按定子磁场定向的转差频率控制
4)  frequency error
频率误差
1.
A method of measuring TD-SCDMA signal frequency error based on virtual instrument is proposed.
提出了一种基于虚拟仪器的精确测量TD-SCDMA信号频率误差的方法,并给出了系统设计。
2.
The paper discusses frequency error generated by random phase undulation and gives Max.
讨论了随机相位波动产生频率误差,给出了在测量频率范围内随机相位波动产生的频率误差的最大均方根值误差。
3.
Small frequency error may exist in frequency sources between receiver and transmitter,because of the craft of devices when oven controlled crystal-oscillators of high stability are used in both transmitter and receiver.
机动式多基地地波超视距雷达是一种新型的雷达体制,发射站和接收站均采用高稳定度的恒温晶振作为频率源,但由于器件本身的工艺原因,收发站的两个频率源间可能存在微量的频率误差,这就使得接收站无法准确得到发射信息。
5)  no frequency-deviation
频率无差
6)  differential frequency meter
频率差计
1.
Discussion about the principle of differential frequency meter;
频率差计基本原理的探讨
补充资料:频率计量(见时间频率计量)


频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology

  口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
  
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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