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direct digital synthesizer中文什么意思

发音:   用"direct digital synthesizer"造句

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  1. Design of bessel low pass filter in direct digital synthesizer
    直接数字合成器中贝塞尔低通滤波器设计
  2. Through the research of direct digital synthesizer ( dds ) used as a divider in phase lock loop ( pll ) , a frequency synthesizer with small frequency resolution ratio and high purity frequency spectrum can be realized
    摘要通过对直接数字合成器在锁相环路中作为分频器应用的研究,使频率合成器可以在实现超细频率分辨率的同时达到高的频谱纯度。
  3. This paper studies the system and hardware design of the arbitrary waveform generator based direct digital synthesizer in detail . and a theoretical analysis of the system performance is also given
    本文主要研究了基于直接数字合成( directdigitalsynthesizer )技术的任意波形发生器( arbitrarywaveformgenerator )的整体方案和核心部分的硬件设计。
  4. The developed module are the arbitrary waveform generator based on dos ( direct digital synthesizer ) technology as a signal source of testing system and the common testing device such as virtual spectrum analyzer - , virtual digital storage oscilloscopes virtual frequency counter etc
    所开发的模块有,采用dds技术实现的任意波形发生器作为测试系统中的信号源,以及常见的信号测量设备,如虚拟频谱分析仪,虚拟数字存储示波器,虚拟频率计数器等虚拟仪器。
  5. This paper deals with fundamental principles and characters of direct digital synthesizer ( dds ) , analyzes the principle of dds in modulation , also presents various basic schemes to implement gmsic 4dqpsk and qam , and makes an initial analysis on their performances
    本文介绍了直接数字频率合成( directdigitalsynthesizer , dds )的基本原理及特性,分析了dds用于调制的原理,并给出了实现gmsk 、 / 4dqpsk和qam等调制的多种方案,同时对其性能进行初步分析。

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