The phase- locked loop is one kind of control system which is able to achieve phase automatic lock, to compose frequency and to trace demodulation system.
锁相环路是一种能实现相位自动锁定的控制系统，主要用于频率合成及跟踪解调系统。
Two kinds of signal processing methods for heterodyne interferometer, phase locked frequency demodulation and combinatorial frequency demodulation are presented in this paper.
介绍了两种激光外差干涉信号的处理方法锁相频率解调法及组合频率解调法。
Phase errors is introduced in echo demodulation process because of the frequency synchronization error, and then, the final focus result will be deteriorated.
在接收端解调过程中，该频率同步误差会引入一定的相位误差，进而影响下一步的成像处理。
We have mainly researched two FM signal demodulation techniques called Frequency Spectrum Separation and Phase Lock Loop in the first part.
一次解调中研究了频谱分离法和锁相法两种实现鉴频的技术。
The latch phase circle circuit NE567 functions as phase demodulation of audio frequency signals for realizing decoding output of the control signals to control the downhole motor operations.
应用锁相环集成电路ne567对音频信号的鉴相原理实现对控制信号的译码输出，控制井下仪器马达工作。
Signal demodulation of automatic block with audio frequency shift modulated track circuits was implemented with phase-locked loop (PLL) technique and a singe chip microcomputer.
利用锁相环(LL)窄带跟踪特性，与单片机结合，实现自动闭塞系统移频信号解调。
The phase-lock technique is widely used in many fields, such as modulation and demodulation circuit and frequency synthesizer circuit.
锁相技术在调制和解调、频率合成电路等很多领域应用极其广泛。
The phase-lock technique is widely used in many fields, such as modulation and demodulation circuit and frequency synthesizer circuit.
锁相技术在调制和解调、频率合成电路等很多领域应用极其广泛。
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