digital frequency synthesizer中文什么意思

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用"digital frequency synthesizer"造句

数字频率合成器
数字频率综合器
数字式频率合成器

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。
dfs digital frequency synthesizer: 数位频率合成器; 数字频率合成器
direct digital frequency synthesizer: 直接式数字频率合成器

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例句与用法

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Dfs digital frequency synthesizer
数字频率合成器
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。