The Digital Phase Lock Loop(DPLL)is the core of the coherent demodulation.
数字锁相环路（DPLL）是数字相干解调技术的核心。
Aimed at 2dpsk modulation, the cross spectra demodulation method that obtains relative phase information through calculating the cross spectra of two neighboring symbol signals is proposed.
针对2DPSK调制方式，提出了通过对相邻两个码元信号求互谱来获取相对相位信息的互谱解调法。
The property of digital filters for spatial phase detection significantly influences the accuracy and the speed of phase demodulation.
在空间载波条纹位相检测中，滤波函数的选择对解调相位的精度和速度起着决定性的作用。
The shot noise and thermal noise with homodyne demodulation technique is given in this article. And phase noise induced with different time delay is also analyzed.
给出了采用零差解调技术时干涉系统的散粒噪声和热噪声，并且分析了在不同时间延迟情况下的相位噪声。
This paper proposes a carrier phase tracking loop dedicated for VSB demodulation.
本文提出了一种专门用于数字VSB解调的载波相位跟踪环。
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。
The methods for lightwave phase demodulation are discussed.
最后探讨了光相位解调方法。
The paper presents an signal demodulation method used in EMT based on phase feedback search.
提出适用于EMT的基于相位反馈搜索的信号解调方法。
This paper introduces a method of FSK modulation and demodulation using CMOS phase locked-loop chip CD4046.
文章介绍了一种利用CMOS锁相环芯片CD 4046实现FSK信号调制与解调的方法。
Several demodulation schemes for split phase coded PSK signals are described in this paper.
本文叙述了几种分相码移相信号的解调方案。
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。
Realize signal modulation and demodulation functions, including various types of modulation such as ASK (amplitude modulation), PSK (phase modulation), FSK (FM).
实现信号的调制解调功能，包括各类调制如ask(调幅)，PSK(调相)，FSK(调频)。
In the practical phase generated carrier (PGC) demodulation outputs, the direct current (DC) drift can distort the demodulation results.
在实际的相位生成载波(简称PGC)解调输出中，直流漂移会使解调结果产生失真。
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。
In the demodulation process of some digital open-loop algorithms, some special phase points will confuse with each other and cause an error output value.
目前已经提出的一些数字开环解调算法在运算过程中时常会出现某些特殊相位点互相混淆的问题，这会导致系统输出错误的解调结果。
Concerning the problem of demodulating the weak Binary Phase Shift Keying (BPSK) signal, the demodulation method based on chaotic system was researched.
针对微弱二进制相移键控(BPSK)信号的解调问题，对基于混沌系统的解调方法进行了研究。
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。
Based on the characteristics of telemetric phase sensitive signal, two practical demodulation schemes are introduced.
根据遥测相敏信号特点，介绍两款实用解调方案。
Realize digital orthogonal demodulation; the method and results of amplitude consistence and phase orthogonality of the I, Q signal have been given;
给出数字正交解调后输出I、Q两路信号的幅度一致性误差和相位正交性误差的测试方法和测试结果；
The effect of in-phase and quadrature channel errors on digital quadrature demodulation is analyzed and an optimal digital filter design method is selected.
通过分析同相、正交通道误差对正交解调性能的影响，确定了滤波器最佳设计准则。
The effect on modulation and demodulation of QPSK via carrier phase noise can not be ignored, and it is difficult to analyze.
载波相位噪声对QPS K调制解调的影响是不可忽略的，也是难以分析的。
The system is based on Michelson interferometer. It USES a fiber laser with narrow linewidth as light source, and adopts homodyne demodulation with phase generated carrier scheme to restore signal.
该系统基于迈克尔逊干涉仪结构，以窄线宽光纤激光器为光源，采用相位载波零差解调方案实现信号的还原。
The fiber Fabry-Perot sensor is an important branch of optical fiber sensors, which mainly USES intensity demodulation and phase demodulation.
光纤法布里-珀罗传感器是光纤传感器的一个重要分支，其解调主要采用强度解调法和相位解调法。
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。
The outputs were in the form of impulse and phase difference while professional phase demodulation, period and pulse width measurement module focus on FPGA.
此外，以FPGA为核心构建了专用的鉴相、周期及相位脉宽测量模块。
On the basis of the structure and principle of the system, a phase demodulation algorithm is proposed to determine the large disturbances.
在讨论了系统结构及原理的基础上，提出了一种相位解调算法，用以解决系统对大扰动信号的定位问题，并用软件实现了信号的解调。
Non coherent demodulation for 2PSK detects relation of carrier wave phase of the interval symbol by the (half period of carrier wave) delay and the adder, then the data is demodulated.
PSK非相干解调法将经延时半个载波周期的接收信号与原接收信号相加，检测出两相邻码元载波相位变化情况，从而解调出数字信息。
The paper introduces the working principles of the laser tracking system and the mechanism of the infrared laser hoist positioning system using DSP phase demodulation technology.
介绍了激光跟踪系统工作原理和基于DSP鉴相技术的红外激光矿井提升机位置跟踪系统的实现方法。
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。
This paper presents the design and measurement results of a new phase measurement method, which is based on quadrature phase demodulation and helped with MCS-51 single microcomputer.
介绍一种以正交鉴相为基础。以MCS - 51单片微机为核心的相位检测方案的设计思想和实验结果。
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