direct digital frequency synthesizer中文是什么意思

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中文翻译
造句

直接式数字频率合成器

direct adj. 1.笔直的，一直线的；正面的。 2.直接的。 ...
digital adj. 1.手指的；指状的。 2.数字的，数据的。 n ...
frequency n. 1.屡次，频仍，频繁。 2.(脉搏等的)次数，出现 ...
synthesizer n. 合成者，合成物；〔尤指〕【电学】合成器，综合器。
dds direct digital synthesizer 直接数字合成器
direct digital synthesizer 直接数字式频率合成器
dfs digital frequency synthesizer 数位频率合成器; 数字频率合成器
digital frequency synthesizer 数字频率合成器; 数字频率综合器; 数字式频率合成器
indirect digital frequency synthesizer 间接式数字频率合成器
direct frequency synthesizer 直接式频率合成器
direct digital frequency synthesis 直接式数字频率合成
direct synthesizer 直接频率合成器
frequency synthesizer 频率合成器, 频率综合器; 数字频率合成器; 综合器
synthesizer, frequency 频率合成器
digital fm music synthesizer 数字调频音乐合成器
electronic frequency synthesizer 电子闪光管
frequency domain synthesizer 频域合成器; 频域综合器
frequency synthesizer board fsy 频率合成板
frequency synthesizer circuit 频率合成器电路
fs frequency synthesizer 频率合成器
indirect frequency synthesizer 间接式频率合成器
programmable frequency synthesizer 可编程频率综合器; 可编程序频率合成器
quartz pll frequency synthesizer 晶体销相环频率
synthesizer frequency hopping 混合跳频
synthesizer frequency meter 合成频率计

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例句与用法

Study on direct digital frequency synthesizer technology based on piecewise pperation
基于分段运算的直接频率合成技术研究
At first , this paper described the basic structure , working principle , sources of spurious signals and characteristics of output spectrum , of direct digital frequency synthesizer ( dds )
首先分析直接数字频率合成器( dds )的基本结构、工作原理、杂散来源、输出频谱特性。
Direct digital frequency synthesizer ( dds ) is an apparatus to generate wave on the required frequency . it provides high frequency resolution , rapid frequency transforma - tion and other superiority
直接数字频率合成器是现代频率合成的主要工具,它有频率分辨率高,频率转化快等众多优点。
Then according to the emphasis of the design , went deeply into the theory of pll frequency synthesizers widely used , described pll ’ s working principle , structure and several types in detail , and made research and analysis of pll frequency synthesizers ’ phase noise , including the effect of the active loop filter on the phase noise , and give some methods to make improvement as well , such as changing loop filter form , reducing divide number , and increase phase detector frequency , etc . then paper introduced the principle character and phase noise analysis of direct digital frequency synthesizer ( dds ) and injection phase lock circuit , which are also important circuits in the design
论文首先对几十年频率合成器的发展进行概述,而后针对本次设计的重点,对应用较为广泛的锁相频率合成理论进行了深入的探讨,详细介绍了锁相环的工作原理、组成结构和锁相类型,并对锁相频率合成器的相噪特性进行了研究分析,包括有源环路滤波器对于相噪的影响,提出了改善相位噪声的几点措施:改善环路形式、降低分频数、增大鉴相频率等。接着介绍了直接数字频率合成器( dds )和注入锁相电路的原理特点以及相噪分析,它们也是本次设计的重要电路。
The direct digital frequency synthesizer is a kind of fully digitized frequency synthesizer , which consists of the phase accumulator , the sine look - up table , the digital to analog converter and the low band filter . it is of high frequency resolution , fast frequency switching speed , low phase noise , the ability to switch frequencies while maintaining constant phase , and the ability to producing arbitrary waveforms
直接数字频率合成器是一种全数字化的频率合成器，由相位累加器、波形rom 、 d a转换器和低通滤波器构成， dds技术具有频率分辨率高、频率切换速度快、频率切换时相位连续、输出相位噪声低和可以产生任意波形等优点。
The subject derives from electronic equipment bureau of electronic information industry of department of general equipment of china . the subject researches dds ( direct digital frequency synthesizer ) signal source of the frequency agile signal generator . it plays a good role in the important pre - research project that is the test technology of tactics anti - jamming for communication transceiver synthesis
本课题是总装备部电子信息部电子装备局下达的预研项目? ? 《战术抗干扰通信电台综合测试技术》中的信号源部分(捷变频信号发生器中的dds信号源部分) 。
The primary work in this dissertation : 1 . based on the analysis of direct digital synthesis ( dds ) , this dissertation compares the differences and similarities between direct digital waveform synthesizer ( ddws ) and direct digital frequency synthesizer ( ddfs ) . a dds system is presented , and the theoretical analysis and practical implementation of the system is discussed in details
本文所作的主要工作如下: 1 .全面分析了直接数字合成( dds )技术的工作原理,对比了直接数字波形合成( ddws )及直接数字频率合成( ddfs )两种数字波形产生方法,并就其理论设计和工程实践问题进行讨论。

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Last modified time:Sun, 17 Aug 2025 00:29:56 GMT