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1)  Frequency Lock Loop (FLL)
锁频环(FLL)
2)  frequency and phase lock loop
锁频锁相环
1.
A frequency and phase lock loop for carrier recovery;
用作载波恢复的锁频锁相环
2.
High definition television system,whose carrier recovery adopt the technology of frequency and phase lock loop, is in the order of multi\|level vestigial sideband modulated(8\|VSB) transmission system of the Grand Alliance of Americcan.
以美国大联盟( Grand Alliance) 的多电平残留边带调制(8 V S B) 传输系统为代表的高清晰度电视制式,其载波恢复采用了锁频锁相环( F P L L) 技术。
3)  FLL
锁频环
1.
A Study on Carrier Tracking FLL for Extremely-low-CNR Highly-dynamic Signals
极低载噪比高动态信号的载波跟踪锁频环研究
2.
The simulation results show that the Kalman filter based digital frequency locked loop (DFLL) has much wider bandwidth in the transient-state than the fixed-gain DFLL while both have the .
提出了一种基于三维卡尔曼滤波的三阶数字锁频环设计方法,并将该锁频环用于高动态GPS信号的载波跟踪。
4)  Frequency lock loop
锁频环路
1.
The principle of frequency lock loop includes delay line discriminator and it is the characteristic of the low noise,and broad band has been introduced in detail in this article.
本文介绍一种高性能快速跳频合成信号发生器,利用锁相环路和锁频环路相结合的原理和跳频校准控制技术而实现的。
5)  frequency-locked loop
锁频环
1.
In frequency synthesizer,especially in wideband(synthesizer,) phase noise at the middle-far band from carrier frequency will be improved effectively by adding a frequency-locked loop(FLL) to VCO.
在锁相合成器中,特别是宽带合成器中,对VCO采用附加锁频环进行稳频控制,明显地优化了合成器载频中远区的相位噪声,锁频环已成为先进合成器的关键技术。
2.
Above algorithm is realized using single FPGA,frequency-locked loop and phase-locked loop are imple- mented by NiosII replacing conventional DSP,and these enhance stability and reliability of system.
与此同时使锁频环和锁相环同时工作,加快了更新时间。
6)  frequency locked loop
锁频环
1.
This paper researches on frequency locked loop in satellite navigation receivers in detail and mainly involves to the algorithm of the discriminator in frequency locked loop and the realization.
对卫星导航接收机中的锁频环进行了研究,主要涉及锁频环的鉴别器算法、环路调节的两种方式,并对这两种实现方式作了仿真。
补充资料:锁环
1.锁链。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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