介绍分频锁相频率合成技术。
The technology of frequency division phase-locked frequency synthesis is introduced.
所以频率合成技术十分重要。
直接数字频率合成是一种新的频率合成技术；
The direct digital frequency synthesis(DDS) is a new frequency synthesis techniques.
锁相式频率合成技术提供了解决这一问题的思路。
Phase locked loop technique offers a way to resolve this problem.
发射部分采用最先进的频率合成技术，发射频率稳定。
The emission part adopts the most advanced frequencies synthetic technique, having stable emission frequency.
直接数字频率合成（DDS）是一种新型的频率合成技术。
The technique of direct digital synthesis(DDS)is a novel frequency synthesis technique.
利用直接频率合成技术产生高精度、高稳定度的扩频伪码时钟。
The direct digital synthesis (DDS) is adopted to generate the pseudo-random code clock having high precision and stability.
数字查表法合成周期信号是一种最常用的直接数字频率合成技术。
Digital look up table method for synthesizing periodic signals is the most popular technique for direct digital frequency synthesis.
介绍了基于直接数字频率合成技术的双通道任意波形信号发生器。
The double channel arbitrary wave generator based on direct digital frequency synthesis is introduced.
直接数字频率合成技术(DDFS)是一种先进的频率控制技术。
Direct digital frequency synthesis (DDFS) is an advanced technique for frequency synthesis.
利用频率合成技术制成的信号发生器，通常被称为合成信号发生器。
Frequency of use of technology into the signal generator, often referred to as synthetic signal generator.
所以目前频率合成技术的研究主要是复合运用这三种技术来扬长避短。
So the researches on frequency synthesis at present are mainly focused on the complex of these techniques to foster strengths and circumvent weaknesses.
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.
现代频率合成一般综合运用这三种频率合成技术，又称混合频率合成。
The said three techniques are comprehensively applied in the modern frequency synthesis technique, which are also called "Admixture-Frequency synthesis technique".
提出基于频相的直接数字频率合成技术（DDFS）实现采样的跟随时钟。
Offering direct digital frequency synthesis (DDFS) based on the frequency -phase to achieve the following sampling clock.
本文提出了一种新的气象报警系统，此系统采用数字编码和镇相频率合成技术。
This paper presents a new weather alarm emitter adapted digital coding and phase-locked frequency synthesis techniques.
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.
直接数字合成是先进的频率合成技术，给出了直接数字合成器的设计方法和实现技术。
Direct digital synthesis is a kind of advanced technique on frequency synthesis, in this paper, the design and realized technique of DDS is given.
为了解决频率稳定度、准确度和频率高、宽范围可调之间的矛盾，就需要频率合成技术。
To address the frequency stability, accuracy and high frequency, wide scope of powers between the contradictions requires frequency synthetic technology.
PLL混合频率合成技术能综合两者的优点，已成为现今频率合成领域的重要研究方向。
DDS hybrid PLL can take good advantage of both their merit, have become an important area of frequency synthesis.
网络分析仪结合了频率合成技术、采样技术、宽带扫频技术、计算机辅助测量等新技术。
Network analyzer adopt these new technology such as frequency synthesis, sampling technique, broad-band sweeping and computer-assisted testing.
本文首先介绍了直接数字频率合成技术的原理和结构，并分析了其噪声来源和抑制方法。
Firstly, this paper introduced the principle and structure of direct digital frequency synthesis and analyzed the source and suppression methods of frequency noise.
在此基础上，介绍了小数分频器在直接数字频率合成技术和步进电机驱动速度控制中的两种常见应用。
Applications of decimal Fraction frequency divider in the area such as direct digital frequency synthesis technology and stepper motor drive speed controller a re introduced.
频率合成技术，就是将一个(或多个)基准频率变换成一个(或多个)合乎质量要求的所需频率的技术。
The frequency synthesizes a technique, be become a basis frequency tra formation a (or many) conforms to a quality request of the technique of frequency needed.
直接数字式频率合成(DDS)作为一种新的频率合成技术，它可以实现从信号参数到信号波形的转换。
Direct digital synthesizer (DDS) is a kind of new frequency synthesizer technique. With it signal parameter can be switched into signal wave.
频率合成技术是近代通信系统的重要组成部分，在无线电通信与电子系统的各个领域中得到了广泛的应用。
The technology of frequency synthesis is important in latter-day communication system. It's widely used in wireless communication and electron system.
由于DDS固有杂散较大，要使DDS在频率合成技术中有效地发挥作用，就必须对其杂散特性充分了解。
Since the inherent spur performance of DDS is not in perfect condition, so, in order to make DDS work effectually, it is very necessary to understand the spur performance of DDS fully.
由于DDS固有杂散较大，要使DDS在频率合成技术中有效地发挥作用，就必须对其杂散特性充分了解。
Since the inherent spur performance of DDS is not in perfect condition, so, in order to make DDS work effectually, it is very necessary to understand the spur performance of DDS fully.
应用推荐