您要查找的是不是：
- phose lock loop technology 锁相环技术
- Application of Digital Phase - locked Loop Technology in Meterage Speed of Motor 速度反馈信号的检测和处理
- Resolution of Systematic Design Trouble with PLD Interior Phase Lock Loop. 使用PLD内部锁相环解决系统设计难题。
- Abstract：The Phase Lock Loop (PLL) Circuits are widely used in electronic systems especially in receivers. 锁相环路是在现代各种电子系统中，特别是在接收机中应用广泛的一种基本电路。
- The coupling visibilities(CV) of temperature sensor heads were measured with phase lock loop technique. 采用锁相环技术测试了各传感器的分光可见度随温度的变化关系。
- The frequency and phase lock loop has been applied for the carrier recovery of VSB transmission system in high definition TV. 目前，锁频锁相环在高清晰度电视VSB传输系统载波恢复中得到了应用。
- The signal processing circuses, including the low-noise pre-amplifier, the filter and the phase lock loop(PLL) demodulation were designed. 分析并研制了系统的信号调理电路，其中包括低噪声前置放大、滤波、锁相环解调。
- To meet the requirements of the target radio frequency (RF) hardware-in-the-loop simulation of the radio detonator, a method using a special phase lock loop (PLL) is presented. 摘要针对某型导弹无线电引信目标射频半实物仿真的需要，提出了一种特殊的环路锁相方法。
- The use of phase-locked loop technology makes the sampling frequency synchronously follow the signal frequency and improves the calculation accuracy of sampling data. 运用锁相环技术使采样频率同步跟踪信号频率,提高采样数据计算的准确性。
- To meet the requirements of the target radio frequency(RF) hardware-in-the-loop simulation of the radio detonator, a method using a special phase lock loop(PLL) is presented. 针对某型导弹无线电引信目标射频半实物仿真的需要,提出了一种特殊的环路锁相方法。
- One example is the phase comparator of a phase locked loop. 一个例子是相锁环状态下的相位比较器。
- 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。
- The PLL (phase lock loop) is realized by form of charge pump, its loop filter is passive two-order LPF. Compared to other form of active filter, this CP PLL has less noise, which does some good to its output spectrum. 微波锁相环采用电荷泵的形式,其环路滤波器为无源二阶低通滤波器,相比采用有源滤波器的锁相环,它不会附加有源噪声,而且滤波器结构简单,便于调试。
- PLL (phase lock loop) with PFD (phase-frequency detector) have been widely used in recent years.Reason for their popularity include extended tracking range, lower tracking time and low cost. 摘要锁相环(PLL)是一个闭环相位自动控制系统，能够利用一个精确且稳定的频率产生一系列频率准确的信号，为系统内部的其它模块提供稳定的高频时钟。
- Phase locked loop (PLL) has been widely used in communication system. 锁相环路在通信系统中得到了广泛的应用。
- In order to satisfy the flow measurement precision for big-pipe,multi-paths ultrasonic flow measurement system based FPGA(Field Programmable Gate Array) and phase lock loop(PLL) was developed. 为了满足大管径流量的测量精度,研制了基于现场可编程门阵列器件FPGA和锁相环路的多声路超声波流量测量系统。
- Because of the frequency lock loop traction PLL filter can be designed very narrow, with very good noise suppression performance, to meet the precise requirements of carrier phase tracking. 由于有锁频环的频率牵引，锁相环路滤波器可以设计得很窄，具有很好的抑噪性能，满足精确跟踪载波相位的要求。
- The phase noise in microwave receiver and the measured parameter of source frequency instability are described in this paper, and the technology of frequency-synthesizing and theory of Phase Locked Loop (PLL) are also briefly introduced. 摘要阐述了微波接收机中的相位噪声概念及本振源频率不稳定度的实际测量参数，并简要介绍了频率合成技术和锁相环路工作原理。
- Product categories range from: Broadband and optical networking, DSL, IP telephony, LMDS and wireless local loop technologies. 产品包括：宽带及光纤网络；DSL；IP技术；LMDS和无线局域技术。
- The phase jitter of output signal of the PLL( phase locked loop) frequency doubler is analyzed. 定量分析了数字式锁相倍频器输出信号的相位抖动.
