2. 直接数字频率合成器 ...___ 学号:___直接数字频率合成器(Direct Digital Frequency Synthesizer)是一种基于 全数字技术, 从… wenku.baidu.com|基于6个网页 3. 直接数字式频率合成器 3,直接数字式频率合成器(Direct Digital Frequency Synthesizer).该类方法具有高频率稳 定度,高频率分辨率以及极短的频率...
1. 什么叫DDS 直接数字式频率合成器DDS(Direct Digital Synthesizer),实际上是一种分频器:通过编程频率控制字来分频系统时钟(SYSTEM CLOCK)以产生所需要的频率。 DDS 有两个突出的特点,一方面,DDS工作在数字域,一旦更新频率控制字,输出的频率就相应改变,其跳频速率高;另一方面,由于频率控制字的宽度宽(48bit 或 者...
A frequency direct digital frequency synthesizer for generating an analog waveform of a predetermined frequency from accumulated digital frequency words which, as accumulated, represent the phase of a sine wave of said predetermined frequency. The synthesizer includes a 4-bit coarse-component accumulator ...
网络直接数字频率合成器 网络释义 1. 直接数字频率合成器 直接数字频率合成器(DirectDigitalFrequencySynthesizer),简称DDS,是一种新型的频率合成技术。它采用数字化技术,通过控制 … www.cnki.com.cn|基于 1 个网页
A direct digital frequency synthesizer employs residue number system based processors to generate output waveforms of desired frequencies. The frequency synthesizer includes a phase accumulator comprising a plurality of individual adders, each adding a predefined quantity to a digit of a frequency setting ...
A type of sensor measurement system based on the phase detector is introduced, in which direct digital synthesizer(DDS) acts as the high-frequency signal generator. 本文设计了一种利用直接数字频率合成器(DDS)作为频率源,基于相位测量芯片AD8302的气敏传感器测试系统。 更多例句>> 3) DDS(Direct Digital...
A frequency direct digital frequency synthesizer for generating an analog waveform of a predetermined frequency from accumulated digital frequency words which, as accumulated, represent the phase of a sine wave of said predetermined frequency. The synthesizer includes a 4-bit coarse-component accumulator ...
（Direct Digital Frequency Synthesis简称DDS或DDFS）得到了飞速的发展，它以有别于其它频率合成⽅法的优越性能和特点成为现代频率合成技术中的佼佼者。具体体现在相对带宽宽、频率转换时间短、频率分辨率⾼、输出相位连续、可产⽣宽带正交信号及其他多种调制信号、可编程和全数字化、控制灵活⽅便等⽅⾯，并...
2) direct digital synthesis(DDS) 直接数字式频率合成 1. It introduces the theory of direct digital synthesis(DDS),and presents the application of DDS in electrical measurement and instrumentation. 介绍了直接数字式频率合成(DDS)技术的基本工作原理及其DDS在电子测量与仪表中的应用,并对相位截断条件下...
Direct digital frequency synthesizer using sigma-d 优质文献 相似文献 参考文献 引证文献8. Spur Reduction Techniques in Sine Output Direct Digital Synthesizer Kim, “The Optimization of Direct Digital Frequency Synthesizer in the Presence of Finite Word Length Effects Performance,” in Proc. 42nd Annu....