目前光纤陀螺研究的关键问题之一是如何扩大其线性动态范围并获得数字输出，解决这一问题的方法之一是利用移频器构成闭环光纤陀螺。
One of the main problems in FOG research is to realize linear and digital output. This problem can be solved by forming close-loop FOG using frequency shifters.
它是一种类似的多普勒频移的效应，就像救护车在你面前驶过时，会促使逐渐靠近你的警报器明显地改变其音调那样。
A similar effect, called the Doppler shift, causes the siren of an approaching ambulance to apparently change pitch as it passes you.
最后比较了上滑频滤波器、下滑频滤波器、以及无频移滤波器在抑制频率移动的性能。
Finally, a comparison about performance is made among up sliding filter, down sliding filter and none sliding filter in suppression of frequency shifting.
提出并分析了集成电光波导调制器在多普勒雷达中的一种新的应用方式。该调制器的电极采用鳍线结构，能够方便地获取多普勒频移信号。
In this paper, an integrated optical modulator is proposed and analyzed, which is constructed in a fin line geometry and can be applied to a Doppler radar for processing the Doppler frequency shift.
结果表明利用光纤声光耦合器的移频与滤波特性，可研制成一种全新结构的光纤声光耦合环形谐振腔。
It is found that a novel acoustooptic coupled ring resonator can be got for the frequency shift and filtering characteristics of the acoustooptic fiber coupler.
本文提出了一种基于多普勒频移的全光纤光路宽速度测量范围的测速传感器——多普勒光纤速度传感器。
This dissertation puts forward a kind of sensor with wide measure velocity range based on the Doppler Frequency Shift and all-fiber path, namely Doppler Fiber Velocity sensor.
在复合系统通信中，飞行器的高动态使扩频信号存在多普勒频移。
In the communication of multiplex system, the DS signal exists Doppler frequency shift for the high dynamic situation of aerocraft.
混频器主结构采用两只对称的单平衡混频器组合，通过上下两路信号移相来达到消除镜频的目的。
The main structure of the mixer adopts two symmetrical single-balanced mixers, with phase-shifting of the up and down path signals to eliminate the image frequency.
提出了卷积码与GMSK(高斯最小移频键控)调制器级联系统的一种迭代译码方案。
An iterative decoding scheme is proposed for the concatenation of a convolutional code and a GMSK modulator.
无碰撞区跳频通信系统的跳频器所使用的跳频码是无碰撞区跳频码，该码在零位移附近一段区域内汉明相关值为零。
The No-Hit-Zone (NHZ) hopping code is employed by the frequency hopper of NHZ FH communication systems, which have no hits at all within a predefined correlation zone in the vicinity of zero shift.
理论分析表明频移幅度与调制频率、时间常数和半导体激光器的偏置电流等物理量有关。
It is made clear through the theoretical analysis that the frequency shift is dependent on the modulation frequency, thermal time constant, bias current of the laser diode and so on.
若语言扩声系统临近不稳定状态工作，频移器可以有效地减少再生混响干扰。
If the public address system is operated below but too close to the instability condition the frequency shifter can reduce effectively the interference of the regenerative reverberation.
本文叙述抑制声反馈的频移器的设计，并进行了实验研究。
This paper describes the design of a frequency shifter to suppress acoustic feedback, to be studied by the experimental method.
论述了用原子滤波器的透射率廓线测量激光多普勒频移的直接检测方法和理论。
The theory and method of measuring moving target′s velocity using atomic transmission are described.
dsp数字移频反馈控制器，由dsp数字移频-dsp自动数字滤波器组成，根据现场环境dsp软件自动寻找啸叫点并锁定，无需人工调节。
Dsm dsp frequency feedback controller is made of dsp shift frequency and dsp automatism digital filter. dsp software searches howl point and lock it by locale condition with no adjusting.
死区时间的合理选择是保证移相定频控制的全桥零电压开关DCDC变换器零电压开关状态的必要条件。
Proper selection of the switching dead time of the lagging arm is necessary for ensuring the ZVS operation of the phase shifting FB ZVS DC DC converter.
移频转换器FSC ？
移频转换器FSC ？
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