1) engaging frequency
接合频率
2) direct digital frequency synthesis
直接频率合成
1.
In order to solve the sequential control excursion and signal degradation of six-stance electromagnetic sensitivity position system caused by temperature influence,a sequential sine signal generator based on direct digital frequency synthesis and CPLD(complex programmbale logic device) digital control technology was designed.
为解决六自由度电磁敏感定位系统信号发生电路模拟器件受温度影响产生的时序控制漂移与正弦信号质量降低的问题,根据直接频率合成技术DDS(direct digital frequency synthesis)原理,采用CPLD(complex programmbale logic device)数字控制技术,设计了一种新型的时序正弦信号发生电路。
2.
The difference between direct digital frequency synthesis and conventional frequency synthesis technology is analyzed A new method which is able to improve the clock s precision in DAC system is propose
从介绍 DDS的原理出发 ,将 DDS与 PL L做一些比较 ,分析了直接频率合成技术和传统频率合成技术之间的不同 ,提出了一个用直接频率合成技术的方法来提高 DAC系统中时钟准确性。
3) direct frequency synthesis
直接频率合成
1.
Base on the discussion of three kinds of basic technique of frequency synthesis such as direct frequency synthesis , phase-locked loop and direct digital synthesis, and several implementation technique of frequency synthesizer, a design of frequency synthesizer combining direct digital synthesis with a chain of frequency multiplier is given.
在对直接频率合成、锁相环频率合成和直接数字频率合成三种基本频率合成技术,以及目前常用跳频频率合成器技术方案进行简要分析和对比的基础上,提出了一种由直接数字频率合成和倍频链构成的适用于超高速跳频的频率合成器设计方案,较好地解决了在保证频率高速切换条件下达到超高速跳频频率合成器输出频谱纯度要求的技术难点,并给出了采用该方案的具体实验结果。
4) DDS
直接频率合成
1.
Synchronous Output of Relaying Protector Based on DDS;
基于直接频率合成技术的继电保护器同步输出
2.
In this paper, the basic principles of direct digital synthesis technology is first introduced, then a new method of minimum shift keying modulation which is based on DDS and differential demodulation is introduced.
阐述了DDS(直接频率合成)的基本理论,并对其理论实现做了详尽的理论分析。
3.
This dissertation focuses on the realization of L-band sweep signal source based on Direct Digital Synthesis (DDS) and Phase Locked Loop (PLL).
本文采用直接频率合成(DDS)和锁相环(PLL)相结合的频率合成技术，设计出L波段扫频源。
5) transconjugative frequency
接合转移频率
6) direct digital synthesize(DDS)
直接频率合成
1.
It s adopt the latest technic of direct digital synthesize(DDS),at the same time it s link the konwledge of electric power, compute,automation together,in order to meets to the power of special testing.
采用了最新的技术——直接频率合成技术，并结合电力电子、计算机、自动控制等多学科的知识，开发出了满足特种测试需要的可程控功率信号源。
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