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- The DDS, Direct Digital Synthesizer, which is implemented by a unique FPGA IC, can provide the stable sine signal with digital AM, FM, ASK, PSK modulation. 仅用单片FPGA就实现了直接数字频率合成技术（DDS），产生稳幅正弦波，并在数字域实现了AM、FM、ASK、PSK等四类调制信号。
- The RF down converter used with the direct digital synthesizer uncouples tuning speed from phase noise creating the fastest and highest performance tuner on the market. 由于采用了直接数字合成去耦调谐速度的射频下变频，避免了相位噪声，也创造了市场上最快的速度和最高的性能。
- Use method (1) named "the programmable trapping wave", which is merged with frequency spectrum convert in linear ,Direct Digit Synthesizer and Surface Acoustic Wave Filter, to open a communication band in jam-band willfully. 使用融合了线性频谱搬移技术、数字频率合成技术以及声表面波滤波技术的“可编程陷波法”，在干扰频段内任意开辟出通讯频段窗口；
- 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。
- direct digital synthesizer (DDS) 直接数字频率合成器
- DDS ( direct digital synthesizer) DDS（直接数字频率合成器）
- DDS (Direct Digital Synthesizer) DDS（直接数字频率合成器）
- 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
- 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。
- An Improved Direct Digital Synthesizer with Reduced Spurious Noise 一种减少杂散的直接数字频率合成器改进结构
- Direct Digital Synthesizer (DDS) and Performance Analysis 直接数字频率合成器(DDS)及其性能分析
- Design of a Novel Frequency Sweeper Using Direct Digital Synthesizer 新型直接数字合成式扫频仪的原理和研制
- Direct Digital Synthesizes (DDS) 直接数字合成
- Design of a Local Oscillator for High Performance Digital Television Tuner Based on Direct Digital Synthesizer 基于直接数字频率合成器的高性能数字电视调谐器本振设计
- Keywords VLBI;Digital Base Band Converter;Digital Sampling;Direct digital synthesizer;Digital Filtering; 数字基带转换器;数字采样;数字频率综合;数字滤波;
- Direct Digital Synthesizing Applied in Arbitrary Waveform Generator 直接数字合成在任意波发生器中的应用
- Direct Digital Synthesizing Frequency Modulated Signal 直接数字合成调频信号的研究
- A CORDIC-Based LFM Implementation in Direct Digital Synthesizing 基于CORDIC算法的线性调频直接数字合成实现
- A Quadrature Direct Digital Frequency Synthesizer (QDDS) based on CORDIC algorithm is presented. 设计了一种基于CORDIC算法的正交输出直接数学频率合成器(QDDS);并在ALTERA FLEX10K 系列FPGA上予以实现.
- A realization technique of high speed arbitrary wave generator based on dual DDS(direct digital frequency synthesizer) is presented. 提出了一种基于双DDS(Direct Digital Frequency Synthesizer)的高速任意波发生器实现技术。
