DDS technology can switch frequency fastly in phase continuous.
应用dds技术可实现相位连续的快速频率切换。
Based on DDS technology of CNC signal generator of the design process, there are two languages.
基于DDS技术的数控信号发生器的设计程序，也有两种语言。
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。
A signal source in sonar receiver's testing is designed, its working principle is based on DDS technology and log DAC.
设计一种声纳接收机测试用信号源，该信号源的工作原理基于DDS技术和对数DAC。
Aim at the design of six lines triphase signal source based on DDS technology, the design methods of hardware and software were given out.
针对基于DDS技术的三相六通道信号源设计，给出了系统的硬件设计及软件设计方法。
The system adopts AGC circuit, uses DDS technology to realize such functions as frequency modulation, amplitude modulation, ASK, PSK, etc.
系统采用自动增益控制电路，并运用DDS技术实现调频、调幅，ASK、PSK等功能。
Many of digital circuit technologies are adopted in the hardware circuit design, such as DSP technology, DDS technology, digital potentiometer technology and so on.
在装置硬件电路设计上，大量采用了数字电路技术，如DSP技术、DDS技术、数字电位器技术等。
In order to solve the requirement of high precision equal phase in three-phase AC power supply, one AC power supply is designed based the traditional DDS technology.
针对某设备所需的三相电源相位精度要求高的特点，在传统DDS技术的基础之上，设计了一款高度对称的三相电源。
Here we bring forward one digital waveform generator based on DDS technology, use CPLD to do hardware design, finish functional and timing synthesize with certain EDA tool's help.
文中设计了一种基于DDS技术的数字波形发生器，并在此基础上采用CPLD技术来进行硬件设计研究，对电路的数字部分进行了分步设计以及功能仿真和波形仿真。
To improve the accuracy of the sine signal source, gived a design method of sine signal source based on DDS technology, presented the design of hardware and software of the system.
给出了一种基于DDS技术的正弦信号源设计方案，以提高信号源的精度指标。
It mainly introduces the application of DDS technology in the arbitrary wave generator's function circuit it proposes a method of high-rate accuracy programming control by way of DAC.
介绍了DDS技术在波形产生功能电路中的应用，推出了利用DAC实现高精度线性程控的一种方法。
For the modulation part of the design, traditional DDS technology is improved to implement CPFSK modulation. As a result, the performance of spur and error of digital part are optimized.
调制部分实现CPFSK调制，对传统的DDS技术进行改进，使其数字部分的杂散性能改善且具有较低的相位连续误差。
Through a experiment, It is testified that the design meets the requirement planed and the way to use software and hardware programming method and DDS technology to realize AWG is available.
通过实验说明，本设计达到了预定的要去，并证明了采用软硬件结合，利用DDS技术实现任意波形发生器的方法是可行的。
First of all, this thesis introduces the features of Direct Digital Frequency Synthesis (DDS) technique and gives a new structure of the Arbitrary Waveform Generators (AWG) base on DDS technology.
首先，本文对数字频率直接合成(DDS)技术的特点进行介绍，提出一种基于DDS技术的任意波形发生器(AWG)的改进结构。
The working principle of silicon static electric micro-resonator is simply introduced. Based on DSP chip and DDS technology, a design frame for a new type intelligent driving generator is proposed.
介绍了硅微静电梳状谐振器的静电驱动工作原理，重点提出了基于DSP芯片和DDS技术的智能驱动源系统设计框架。
This paper introduced the design and development of a virtual frequency sweeper based on DDS technology. The DDS technology and the method to design the frequency sweeping generator were illustrated.
介绍了基于DDS技术的虚拟扫频仪的硬件与软件设计，并详述了DDS技术以及用该技术实现扫频信号源的方法。
DDS and digital phrase-lock technology have been applied in FPGA to improve the accuracy of frequency tracking.
采用高精度的直接数字频率合成（DDS）和数字锁相环技术，实现了高频率跟踪精度。
Digital waveform generator which use DDS (Direct Digital Synthesize) technology has many merits like high frequency resolution, good stability and easy to generate signal.
基于DDS技术的数字波形发生器具有频率分辨率高、稳定性好、可灵活产生多种信号的优点。
In this paper a method of designing and implementing Field Programmable Gate Array (FPGA) digital modulator based on the improved Direct digital Synthesizer (DDS) technology is presented.
提出了一种基于改进直接数字频率合成(DDS)技术的现场可编程门阵列(FPGA)数字调制器设计与实现方法。
The technology of DDS has many values, such as the speed of hopping frequency is very high, the resolving power of frequency is also high.
这种直接数字式频率合成技术(DDS)具有频率值转换速度快、频率值分辨率高、控制频率的相位值连续等优点。
The system adopts direct digital synthetic (DDS) technology for building the sine wave generator to realize continuous regulation of amplitude, frequency and phase modulation.
系统采用直接数字合成（DDS）技术构建正弦波发生器，实现幅值、频率、相位等连续调节；
According to the technology of direct digital synthesis(DDS), a kind of low frequence signal source was introduced based on the Complex Programmed Logical Device(CPLD)and Single Chip Micyoco(SCM).
介绍了一种应用直接数字频率综合器（DDS）技术，基于可编程逻辑器件（CPLD）和单片机设计的低频信号源。
The principle of digital T/R module based on direct digital synthesis (DDS) technology is proposed, and the experiment results on the digital T/R module are given in this paper.
简要介绍了基于直接数字合成（DDS）技术的数字T/R组件的基本原理，对基于DDS的相控阵数字发射组件进行了实验研究，文章给出了实验结果，并进行了分析。
In fact, DDS is a technology for waveform synthesization that is able to output any waveform with high stability.
DDS实际上是波形的合成技术，可以输出高稳定度的任意波形。
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。
In this paper, the design method of hopping frequency signals based on the technology of DDS is given.
给出了一种基于DDS技术的跳频信号源的设计方法。
Direct digital synthesis (DDS) is an advanced all digital frequency synthesis technology, based on the PM function of DDS, this paper gives the design scheme of a DDS digital phase shifter.
直接数字式频率合成技术(DDS)是一种先进的全数字频率合成技术，本文基于DDS的相位调制功能，给出了一种DDS数字移相器的设计方案。
Direct digital synthesis (DDS) is an advanced all digital frequency synthesis technology, based on the PM function of DDS, this paper gives the design scheme of a DDS digital phase shifter.
直接数字式频率合成技术(DDS)是一种先进的全数字频率合成技术，本文基于DDS的相位调制功能，给出了一种DDS数字移相器的设计方案。
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