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- Structural Design of A Direct Frequency Synthesizer 某直接式频率综合器结构设计简析
- digital direct frequency synthesizer (DDS) 数字式直接频率合成器
- A Miniature Low Phase Noise S-Band Direct Frequency Synthesizer 一种小型化低相噪S波段直接频率合成器
- Design of A High-performance X-band Direct Frequency Synthesizer 高性能X波段直接式频综的设计
- Design and Analysis of Wideband High Stability and Low Phase Noise Direct Frequency Synthesizer 宽带高稳定、低相噪直接式频率合成器的设计及分析
- direct frequency synthesizer 直接式频率合成器
- 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.
- Frequency synthesizer is the hardcore of a electronic system. 频率合成器是电子系统的核心部件。
- The work presents the frequency synthesizer based on PLLs. 所以在频率合成器的设计,可分为两个主题。
- 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。
- The paper introduced the working principle of the direct digital frequency synthesizer(DDS) and its spurious analysis is performed. 文章介绍了直接数字频率合成器(DDS)的基本工作原理,同时对其杂散进行了分析。
- The robot control system is designed based on direct digital frequency synthesizer (DDS), which is consisting of C8051F040 embedded processor, FPGA and high voltage amplifiers. 基于DDS波形发生原理,为机器人设计了由C8051F040高速单片处理器、FPGA和功率放大器所构成的机器人驱动控制系统。
- This paper introduces the principle of direct digital frequency synthesizer,presents the realization method and simulation result based on FLEX10k complex programmable logic device(CPLD)of Altera Company. 介绍了直接数字频率合成器的工作原理,并利用 Altera 公司的 FLEX10k 复杂可编程逻辑器件(CPLD)给出了实现方法和仿真结果。
- The disadvantages of DDS (direct digital frequency synthesizer) are rather low output frequency and a large set of the spurious signals, and one reason of the spurious signals is phase truncation. 摘要直接数字频率合成(DDS)的缺点在于输出频率低和存在大量的杂散信号,而杂散信号产生的原因之一就是相位截断。
- 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。
- Basing on the discussion of principle and characteristic of direct digital frequency synthesis(DDS) and phase-locked loop frequency synthesis(PLL),a design scheme of frequency synthesizer combining direct digital synthesis used for modern radio is given. 介绍了DDS(直接数字频率合成)技术及PLL(锁相环)频率合成技术的工作原理及特点,给出了现代电台设计中基于DDS的频率合成器的设计方案。
- 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。
- The fast frequency synthesizer used in the CNI system is discussed in this thesis. 本课题对该系统所需的快速跳 频频率合成器进行了初步的研究。
- In this paper, the design scheme of an agile microwave frequency synthesizer which adopts DDS+PLL is discussed. 本文讨论采用DDS+PLL的捷变微波频率合成器的设计方案。
- Therefore,high performance PFD and CP is the necessity and guarantee for high performance frequency synthesizer. 所以,一个好的鉴相器和电荷泵是设计高性能频率合成器必要和保证。