1) automatic frequency control(AFC) loop
自动锁频环
2) auto frequency locking
自动锁频
3) PLL automatic frequency tracking
锁相环自动频率跟踪
4) automatic phase-locked loop
自动锁相环
5) 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。
6) 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。
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。
参考词条