DDS是一种数字合成技术。
文中详细介绍数字合成电路的组成与工作原理。
The composition and principle of digital synthesis circuit are introduced in detail.
优选的采用直接数字合成来调制上行链路信号。
Direct digital synthesis is preferably employed to modulate the uplink signal.
利用直接数字合成(DDS)技术完成对数据的调制。
And while programmed on DSP, we modulated data by the way of Direct Digital Synthesizer (DDS).
观众普遍认为，数字合成的人物和物体看起来不太真实。
The consensus is that digital characters and objects don't look right.
介绍数字合成技术在三相精密功率信号源中成功地应用。
This paper introduces the successful application of digital synthesis technique to three phase precision power signal source.
介绍了利用直接数字合成技术产生频率扫描信号的新方法。
A novel method of direct digital synthesizing frequency sweep signal is presented.
本文提出了采用直接数字合成实现电子相控聚焦系统的设计。
This paper gives the design of electronic phased focused system adopted direct digital synthesis.
该方案通过多频点数字合成技术可以准确模拟海面回波波谱；
The multitone digital synthesizer is employed to simulate the spectra of ocean return signal.
此方法利用直接数字合成技术完成对方波的频率和振幅的调整。
Direct digital synthesis is used for modulating the frequency and amplitude of the square wave.
本论文对数字合成双路函数发生器的原理及实现方法进行了研究。
The theory and realization method of digital synthesis two-channel function generator has been researched in the thesis.
文中给出直接数字合成波形的基本原理，分析了合成波形的频谱。
This paper introduces the principle of direct digital synthesizing signals and analyzes the frequency spectra of synthesized signals.
目的：设计一个采用直接数字合成技术的电流模式多频阻抗激励源。
With the appearance of DDS ASIC, Direct Digital Synthesis(DDS) technology is wide ranging applied.
本文介绍了直接数字合成（DDS）技术在激光相位测距仪中的应用。
This paper introduces the application of direct digital synthesizers (DDS) technique in laser phase distance measurement.
对正弦信号数字合成方法进行了研究，并提出了一种新的数字合成方法。
The method of digit synthesis for sinusoid signal is studied, also a new digit synthesis method is advanced.
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。
The DDS signal generator which can adjust signal phase, signal frequency and complex wave is designed.
该信号源中采用硬件数字合成的办法产生三相电压与三相电流信号正弦波。
Using hardware digital synthesis method, the signal source generates three phase sinusoidal voltage and current signal.
介绍了该成像仪器的数字合成聚焦技术、井眼环境校正技术和测井试验等。
Introduced are the tool's synthetic digital signal processing technology, borehole environment correction and log experiments, etc.
标 签 毫米波高分辨雷达距离像双脉冲伸缩处理直接数字合成（DDS）。
MMW high resolution radar range profile two-step stretch processing method direct digital synthesis (DDS).
直接数字合成是先进的频率合成技术，给出了直接数字合成器的设计方法和实现技术。
Direct digital synthesis is a kind of advanced technique on frequency synthesis, in this paper, the design and realized technique of DDS is given.
本文介绍了一种应用CORDIC算法的线性调频直接数字合成(DDS)的实现方法。
A new method LFM in direct digital frequency synthesizing (DDS) based on CORDIC algorithm is introduced in this paper.
目的：比较两种基于直接数字合成技术的阻抗激励源的性能，为以后阻抗系统设计提供指导。
AIM: to compare the performance of two exciting sources based on direct digital synthesis (DDS) technology and to present some advice for the future system design.
本文首先介绍了DDS的基本原理。然后提出用双dds结构实现调频信号数字合成的方法。
This paper first presents the fundamentals of DDS, and then gives a method of accomplishing digital synthesis of FM signals by means of dual DDS structures.
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；
The system adopts direct digital synthetic (DDS) technology for building the sine wave generator to realize continuous regulation of amplitude, frequency and phase modulation.
在平衡线圈式智能金属探测器的设计中，使用了三片直接数字合成(DDS)芯片ad9832。
Three Direct Digital Synthesis (DDS) chips, AD9832, are used in the design of a balanced coil intelligent metal detector.
采用直接数字合成（DDS）技术构建双路正弦波及同步方波发生器，实现幅值、频率、相位等连续调节；
Based on DDS technique, the signal generator can create two signals, i. e. the sinewave and the square wave signals, and its amplitude, frequency and phase can be continuously adjusted.
本文研究了数字二维动画制作流程，并着重分析了数字二维动画中的两个核心技术环节，数字上色和数字合成。
This paper introduces a execution flow of 2d Animation making, and focuses on the analysis of digital tinting and digital composition, which is two essential part of 2d Animation.
介绍利用复杂可编程逻辑器件CPLD和直接数字合成专用电路dds，设计雷达信号回波模拟器的硬件系统。
Introduce how to design hardware system structure of radar signal echo simulator by using CPLD and DDS.
采用DDWS(直接数字合成)方法，产生了MFSK (m元频移键控)和OFDM(正交频分复用)两种水声通信信号。
And the method of DDWS (direct digital wave synthesis) is adopted to realize the signals of MFSK (multi-frequency shift keying) and OFDM (orthogonal frequency division multiplexing).
结合数字合成脉冲的技术特点及信号特征，提出利用恒流源差分放大电路具有非线性工作区的特点实现高频脉冲信号调理的方法。
Considering the characteristics of digital-synthesis technology and pulse signal, this paper proposes a method to implement the adjustment of high-speed pulse using differential amplifier.
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