另外，NIST还发现可以从光学频率梳产生非常稳定的微波信号。
In addition, NIST has shown that extremely stable microwave signals can be generated from optical frequency combs.
它可以接收Ku波段信号，频率范围10.7 ~ 12.75GHz，通过使用一个外部10MHz参照物改进频率的稳定性。
It receives Ku frequency band signals from 10.7 through 12.75 GHz with improved frequency stability by using an external 10 MHz reference.
实验结果表明本信号电源工作稳定、频率变化范围大，同时具有良好的动静态性能。
Test results show that the signal power supply has good stability, wide frequency range and good performance.
无论是雷达、电子对抗，还是通信、仪器设备等都需要高稳定度的频率源，以保证载波信号的质量。
Whatever it is radar, eccm equipment, communication equipment or instrument, frequency source with high stability is needed to guarantee the quality of carrier signal.
设计了一种利萨如图形信号发生器，能产生不同频率比的正弦信号，通过示波器能方便地得到各种稳定的利萨如图形。
This paper designs a Lissajous Figures signal generator which can generate sine wave with different ratio of frequency, By utilizing oscillograph, all kinds of stable diagram can be shown.
基于DDS技术的数字波形发生器具有频率分辨率高、稳定性好、可灵活产生多种信号的优点。
Digital waveform generator which use DDS (Direct Digital Synthesize) technology has many merits like high frequency resolution, good stability and easy to generate signal.
为了能够方便地产生波形平滑、频率稳定的正弦信号波形，提出了一种基于DDS技术的正弦信号发生器的设计方法。
To produce the smooth waveform with the stable frequency, this paper presents a design method of sine signal generator's function circuit which is based on the DDS theory.
测试结果表明，信号源输出频率的分辨率、稳定度和一系列功能完全达到预定的指标。
The test result indicates that for the output frequency of signal resource, the resolution, stability and a series of functions fully realize the scheduled targets.
频率合成器是一种频率稳定度较高的离散间隔型频率信号发生器，广泛应用在通信、雷达、仪器仪表及导航系统中。
The frequency synthesizer is a kind of discrete frequency singal generator with high stability, and it is widely used in communication, radar, apparatus and navigation system.
频率合成技术的主要作用就是产生一系列高精度、高稳定度频率信号。
The main purpose of the frequency synthesizer is to produce a series of high resolution, high stability signals.
三台航空静止变流器模块均为电压、电流双环控制，通过公用电压调节器稳定并联系统的输出电压及频率，同时产生统一的模块电流给定信号。
Each module is controlled by voltage current two closed loops. The common voltage loop controls system output voltage & frequency, and generates a common reference current signal.
每台航空静止变流器模块均为电压、电流双环控制，通过公用电压调节器稳定并联系统的输出电压及频率，同时产生统一的模块电流给定信号。
Each module is controlled by voltage-current two closed-loops. The common voltage loop controls system output voltage & frequency, and generates a common reference current signal.
利用锁相环的倍频、分频等频率合成技术，可以获得多频率、高稳定的振荡信号输出。
Using PLL synthesis technology such as frequency multiplication and frequency division, may obtain the multi-frequencies, the high stable oscillator signal output.
锁相环频率合成器是一种相位锁定装置，是一种频率稳定度较高的离散间隔型频率信号发生器。
The phase-locked loop frequency synthesizer is a kind of phase lock installment and it is a kind of separate gap frequency code generator with high stability frequency.
要使晶体振荡器的输出信号保持原子标准所固有的频率准确度和稳定度，所用压控晶体振荡器必须具有优良的性能。
The performance of VCXO must be excellent so as to maintain the inherent frequency accuracy and stability of the atomic standard.
电视信号中的标准频率信号是受原子钟控制的高稳定度、高准确度的信号。
The standard frequency in television signals is a signal with high stability and accuracy, controlled by the atomic clock.
氢激射器本身可以提供频率极稳定的微波信号，但由于所提供的信号是非整数频率。
It is well known that hydrogen masers are characterized by a very good frequency stability.
高温材料，相控阵传感器，低电流的要求较稳定的输入电压，环境温度，或输出频率范围的输出信号。
The high temperature materials, phased array sensor, and low current requirements stabilize the output signals over a wide range of input voltage, ambient temperature, or output frequencies.
因此，如何设计一种新的频率合成器来产生大量高精度、高稳定度的频率信号成为了合成技术的关键。
Therefore, how to design a new frequency synthesizer to produce a great deal of high resolution, high stabilization frequency signal has become the key technology of synthesis.
频率 特性和输出信号稳定时间。
The natural frequency and time of output stable signal of dial indicator are analyzed.
频率 特性和输出信号稳定时间。
The natural frequency and time of output stable signal of dial indicator are analyzed.
应用推荐