A design method of frequency synthesis applying two grades frequency division technique for arbitrary waveform synthesizer system

一种适用于任意 波形 合成系统的两级分频频率合成设计方案

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。

Research of Waveform Data Sampling Method Optimized in Arbitrary Waveform Synthesizer

任意 波形 合成 系统中波形数据采样方法的优化研究

This paper studies the system and hardware design of the Arbitrary Waveform Generator based Direct Digital Synthesizer in detail .

本文主要研究了基于直接数字 合成（Direct Digital Synthesizer） 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。

A kind of waveform generator based on direct digital frequency synthesizer is introduced in this paper the hardware circuit and the main principle chart are presented the software flow chart and some of the core software code is presented too .

文章介绍了一种以直接数字频率 合成（ DDS） 技术为基础的 波形发生器，设计了硬件电路，并给出了主要的电路原理图，给出了软件流程图和部分核心软件代码。

MWI overcomes the inherent problems of the WI model and adopts a more reasonable waveform interpolation model which includes uniform synthesizer for the unvoiced and voiced speech new prototype extraction and discription method and dynamic programming to improve the precision of pitch extraction .

MWI采用了一种更加合理的插值模型，包括统一的清音和浊音分析 合成模型、新的典型 波形的提取和表示方法，并且采用动态规划的算法增加基音周期估计的准确性。

Rectified algorithm of error and realization on direct digital waveform synthesizer

DDWS 的 波形误差校正算法及实现

Hardware Design of an Arbitrary Waveform Synthesizer

任意 波形 合成系统硬件设计

Based on the error analysis of direct digital synthesis ( DDS ) this dissertation compares the differences and similarities between direct digital waveform synthesizer ( DDWS ) and direct digital frequency synthesizer ( DDFS ) .

本文以直接数字合成（DDS）系统的误差分析为基础，对直接数字 波形 合成（DDWS）及直接数字频率合成（DDFS）两种数字波形产生方法进行了较为全面的分析对比。

The system of Arbitrary Waveform Generator and its software designing based on Direct Digital Synthesizer ( DDS ) technology have been discussed in detail . A theoretical analysis of the system performance is also given .

主要讨论了基于直接数字 合成（DirectDigitalSynthesizer，DDS）技术的任意 波形发生器（ Arbitrary waveformgenerator，AWG）的系统和软件设计，同时对系统性能进行了简单的理论分析。

DDS is a kind of digital waveform synthesizing technology which has such good performance as short switch time high frequency resolution and low phase noise . DDS is a good approach to be a reference of a frequency synthesizer .

DDS是一种数字 波形合成技术，具有频率转换速度快、频率分辨率高、相位噪声低等优良性能，因此利用 DDS作为可变参考 源是比较理想的。

An analysis of two kinds of methods based DDWS techniques to synthesize IF signal : Digital waveform synthesis based on the IF sampling and base-band digital waveform synthesizer + digital quadrature modulation to generate radar signal via . 3 .

分析了两种基于DDWS技术合成中频信号的方法：基于中频采样的数字波形合成和基带数字 波形 合成+数字正交调制产生雷达信号的设计方案。