DDS

Study of Spurious of Waveform Generated by AWG Based on DDS

基于DDS的AWG波形噪声分析及对称性设计

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Direct Digital Frequency Synthesis ( DDS ) technology is realized on complex programmable logical component ( CPLD ) with hardware description language.

在复杂可编程逻辑器件 ( CPLD ) 上,用硬件语言实现了直接数字频率合成 ( DDS ) 技术.

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DDS which is based on the combination of MCU and FPGA technology is applied in hardware design and high-performance operational amplifiers has also been used to build a potentiostat.

硬件设计方面，采用了结合MCU和FPGA技术的数字信号发生器，使用了高性能运算放大器来搭建恒电位仪。

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Design and implementation of data distribution service based on DDS

基于DDS模型的数据分发中间件的设计与实现

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Through the DDS CMOS chip AD 9851 , the system produces a 64 points sampling signal.

通过DDS芯片AD9851来产生相对于输入信号64倍频的高精度采样信号.

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In this case the row returned to RPG is dependent on which of the duplicate key handling DDS keywords ( LIFO ( default), FIFO or LCFO) were used when creating the keyed logical file.

在这种情况下，返回RPG的行取决于创建键逻辑文件时使用的是哪个用于处理DDS关键字的重复键（LIFO（默认值）、FIFO或LCFO）。

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Application of the four DDS devices running in parallel to NMR

四路并行DDS合成技术在核磁共振中的应用

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The technology of direct digital frequency synthesis ( DDS ) , is a new typed synthesizer technology and signal frequency methods.

直接数字频率合成技术,即 DDS, 是一种新型的频率合成技术和信号产生方法.

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Clear AFM images were ( obtained ) from PbZr _ ( 0.90 ) Ti _ ( 0.10 ) O _ 3-Fe _ ( 0.003 ) nano powder sample prepared by DDS method.

采用DDS法制备PbZr0.90Ti0.10O3-Fe0.003 ( PZT -Fe ) 纳米粉体样品,得到了清晰的AFM图像.

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A method of generating radar multi-target phase-coherence echo based on DDS is discussed.

介绍了一种基于DDS的雷达 多目标 相参回波信号生成方法.

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PLL frequency synthesizer with DDS reference will adapt to local oscillator of modern radio.

采用DDS输出作为参考的PLL频率合成器非常适合用做现代电台的本振.

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A High Accurate Linear FM and PM Signal Source Based on DDS

高精度线性调频调相信号源

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DDS-11 A digital conductivity instrument for laboratory measurements of conductivity of liquids.

DDS-11A型数字电导仪适用于实验室测量液体的电导率.

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A Technique for Improving Upper Limit Frequency and Spurious Level of DDS

一种改善DDS频率上限与杂散电平的方法

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The basic theories of the frequency synthesis , PLL , DDS, DDS + PLL are introduced first in this paper.

本文首先介绍了关于频率合成、锁相环频率合成、DDS频率 合成 、 DDS+PLL频率合成等的基本理论.

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The transmitterof DHF uses DDS to synthesize frequency.

发射机采用直接数字频率合成器(DDS)生成频率,具有精度高、频率跳变速度快的特点.

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The hardware configuration of using DDS chip AD 9956 to realize the linear modulation function is introduced.

介绍了一种基于DDS芯片AD9956实现线性调频功能的硬件实现方法.

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The DDS Design of Modulus 10 Phase Accumulator Based on BCD Code

基于BCD码的模10~i相位累加器DDS设计

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In this paper, A method of control of multi-AD9852 in the distance is presented, the project can agilely realize separate and precision control to the frequency, the phase, the amplitude of DDS.

文中提出多AD9852远距离分布式控制的方法，可实现对DDS的频率、相位和幅度进行独立精确控制。

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In the ultra high frequency system, the frequency compounder section of the transmitting frequency is operated with DDS/ PLL technology.

在甚高频系统中，射频的的频率合成器部分采用DDS/PLL技术。

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An Analysis of DDS Spurious Spectrum Based on Non-uniformly Sampled Model

基于非均匀采样模型的DDS相位截断杂散谱分析

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Improving on the pneumatic system of DDS tapping machine

DDS开铁口机气动系统的改进

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This article describes the design of a linear sweeping frequency signal generator using DDS technology.

本文介绍了利用DDS来产生线性扫频信号的射频信号发生单元的设计.

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The DDS signal generator which can adjust signal phase signal frequency and complex wave is designed.

最终实现频率、相位、复合波形皆可调节的直接数字合成的信号发生器.

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Then the work theory, system structure, technology index, spectrum characteristic, merits and defects of Direct Digital Synthesis ( DDS) are introduced mostly in the second chapter.

在第二章中，主要介绍直接数字频率合成器（DDS）的工作原理，对DDS的系统结构，工作原理，技术指标，频谱特性，优缺点进行了阐述。

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The operation practice proves that the DDS desulfurizer is clearly better than the tannin extract.

运行实践证明，DDS脱硫效果明显优于栲胶法。

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Deposit-dip-spin ( DDS ) coating method, a composite nano-powder sample preparation method for atomic force microscope ( AFM ) measurement is introduced.

介绍了一种改进旋涂法 —— DDS 涂膜法 ( Deposit-Dip-Spin-coating), 主要用来制备纳米粉体原子力显微镜 ( AFM ) 分析样品.

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Impulse test. This procedure for the AD 9850 ( DDS ) Direct Digital Frequency Synthesizer C language source code.

脉冲发生测试. 此程序为AD9850 ( DDS ) 直接数字频率合成器C语言源码.

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Realization of Computational DDS and Its Spurious Noise Performance Analysis

噪声的危害与控制计算法DDS的实现及杂散性能分析

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DDS-1 type m ulti-function electronic laboratory case can meet this requirement.

DDS - 1型多功能电子实验箱即可满足这方面的需要.

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