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- B.G.Goldberg, “Analog and Digital Fractional-N PLL frequency Synthesis: A Survey and Update”, Applied Microwave &Wireless, JUN 1999. 叶家毅;“微波分数频率合成器之研制与应用”;国立中正大学电机工程研究所硕士论文;2000.
- Digital Tuning System of Color TV PLL Frequency Synthesis 锁相环频率合成方式的彩电数字调谐系统
- PLL frequency synthesis 锁相环频率合成
- DDS hybrid PLL can take good advantage of both their merit, have become an important area of frequency synthesis. PLL混合频率合成技术能综合两者的优点,已成为现今频率合成领域的重要研究方向。
- 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。
- A new advanced method to constitute a multiple point frequency synthesizer by using large scale PLL frequency IC controlled by single chipmicrocomputer is presented. 用单片机控制大规模集成锁相环频率合成电路来构成多频点频率合成器,使大规模集成锁相环频率合成电路的功能得到充分发挥。
- Direct Digital Frequency Synthesis(DDS) technique is introduced and its spurious error is mainly studied. 介绍了直接数字频率合成技术以及分析其杂散误差,对相位截断误差和幅度量化误差进行了傅立叶级数分析研究。
- It adopts DDS + PLL frequency synthesizer scheme to realize low end frequency 2~4GHz output,then through segment amplifying multiplying chain realize from 2~4GHz expand to 2~12GHz,and the output frequency is selected by microwave switch. 采用DDS+PLL的混合频率合成方案实现低端频率2~4GHz的输出,再通过分段放大倍频链路实现从2~4GHz到2~12GHz的扩频,并由微波开关控制选频输出。
- If no frequency synthesis is needed, the DLLs are preferred for the purpose of synchronization. 如果频率合成非必要的需求,在处理同步问题时,延迟锁相迴路是较佳的选择。
- In this system, continuously variable slope delta modulation(CVSD) is used to change the analogy signal into digital, GFM is used to modulate the signal, FDMA, PLL frequency synthesizer. 这种系统采用连续可变斜率增量调制(CVSD)来实现语音信号的编码、GFM调制解调方式、FDMA、PLL频率合成器技术。
- GLONASS receiver front end structure and its frequency synthesizer part are given based on the GLONASS frequency plan.The synthesizer is realized with integrated PLL frequency synthesizer. 摘要根据GLONASS系统的频率计划和GLONASS接收机的特定结构,提出用变化钟频法实现GLONASS接收机的前端。
- The technology of direct digital frequency synthesis(DDS),is a new typed synthesizer technology and signal frequency methods. 直接数字频率合成技术,即DDS,是一种新型的频率合成技术和信号产生方法。
- Direct Digital Frequency Synthesis(DDS) technology is realized on complex programmable logical component(CPLD) with hardware description language. 在复杂可编程逻辑器件(CPLD)上,用硬件语言实现了直接数字频率合成(DDS)技术。
- A UHF instrument which adopted frequency synthesis method used in exploring the partial discharge (PD) in GISs is introduced. 文中介绍一种采用频率合成技术对GIS腔体内放电所产生的甚高频响应进行检测的UHF测量设备。
- Could versus signal passing programme came realize frequency demultiplication, could realize precise frequency synthesis output. 可以对信号通过编程来实现分频,从而可以实现精确的频率合成输出。
- Digital look-up table method for synthesizing periodic signals is the most popular technique for direct digital frequency synthesis. 数字查表法合成周期信号是一种最常用的直接数字频率合成技术。
- The direct digital frequency synthesizes (DDS) to take one kind of new frequency synthesis technology, May realize from the signal parameter to the waveform transformation. 直接数字式频率合成(DDS)作为一种新的频率合成技术,它可以实现从信号参数到信号波形的转换。
- CMOS Implementation of RF PLL Frequency Synthesizer 射频锁相环型频率合成器的CMOS实现
- Research on DDS-driven PLL Frequency Synthesizer DDS激励PLL频率合成器的研究