1) frequency authoriation
频率核准
2) frequency standard
频率标准
1.
The design projects of the GPS frequency standard,phase comparing unit and time difference comparing unit are described in detail,and the software design scheme of the system is also given in this paper.
本文详细描述了系统中GPS频率标准源以及比相法、时差法频标比对单元的设计方案和软件设计思路,并给出了设计方案中关键技术解决的途径。
2.
This paper introduces and analyzes the GPS controlled frequency standard work principle,technical characteristics and the system function.
介绍和分析了GPS监控铷原子频率标准的工作原理、技术性能和系统功能,阐述了GPS技术在时频计量测试中的应用和优势。
3.
On measuring the functions of frequency standards,high comparison accuracy is needed in the testing system.
频率标准源可以提供精确的标准频率,在测定频率标准源的各项性能指标时,要求测试系统必须具有很高的比对精度。
4) frequency calibration
频率校准
1.
The real-time frequency calibration method in frequency agility radar target simulator;
频率捷变雷达目标模拟器实时动态频率校准方法
2.
This paper analyzes the defect of the frequency calibration in the traditional signal source of the frequency agility radar,improves the frequency calibration,designs a new frequency calibration circuit.
指出了原有频率捷变雷达信号源中频率校准方法存在的缺陷;改进了原有频率校准电路,经过对实际数据的分析,新的校准电路频率漂移速度达到105Hz/μs,有效地解决了原有信号源的频率跟踪精度低和稳定性差的问题。
3.
This paper analyzes the defect of the frequency calibration in the traditional signal source of the frequency agility radar, designs a new work-while-calibrate circuit for frequency calibration, improving the frequency track precision and the stable work duration.
分析了原有频率捷变雷达信号源中频率校准方法存在的缺陷,在此基础上设计了边工作边校准的频率校准电路,提高了信号源的频率跟踪精度和稳定工作时间。
5) standard frequency
标准频率
1.
A Standard Frequency Synthesizer Using TV Line Synchronization Signal;
叙述了最新研制的一种标准频率综合器。
6) basal frequency
基准频率
1.
It accords a kind of arithmeticof frequency revisal,which can revise basal frequency in realtime.
根据车辆检测器应用环境的特点给出了基准频率校正算法,可以对基准频率进行实时校正。
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。
参考词条