theory of demodulation

This paper discussed the based theory of modulation method, demodulation method, the constitution of message source, technological form of signal and pseudo code position of the new-typed system.

详细的讨论了新型NAVTEX系统所采用的调制解调方式、信源的建立、信号的技术格式、伪距导航定位原理等基本的理论。

Theory of a High-Speed QPSK Demodulation and Its System View Simulation

高码速率QPSK解调载波恢复的原理与仿真

Research of the Theory of Noise Reduction and Demodulation Method Based on Wigner-Ville Distribution and Hilbert Transform and it's Application

基于Wigner-Ville分布和Hilbert变换相结合的降噪解调法及应用研究

Based on the theory of modulation and demodulation, a key technique to realize the real-time transmission of multi-path local signals has been studied, as well as according to circuit. The problem in multi-path local signals transmitting process has been solved.

研究了采用调制与解调方法实现多路现场信号实时传输的关键技术，设计了相应的调制与解调电路，解决了多路现场信号实时传输过程中存在的问题。

New Phase Difference Measurement Based on Digital Synchronous Demodulation Theory and Application of Two-Way Time Transfer Synchronization Technology

基于数字同步解调原理的相位差测量新方法高精度双向时间比对同步技术原理与应用

The Theory Study of Temperature Demodulation Based on Temperature Domino Effect of Anti-Stokes Raman Scattering

基于anti-Stokes Raman散射温度效应的温度解调理论研究

Synchronization Design Theory of Demodulation for Digital Land Mobile Radio System

数字移动通信解调的同步设计理论

Through analyzing the characteristic of spectrum of PCM/ FM signal, the basic theory of demodulation by spectrum was got.

分析了PCM/FM信号的谱特性，给出了利用PCM/FM信号的频谱进行解调的理论基础。

A Research on Theory and Technique of Demodulation of Optical Fiber Sensors Used for Structure Health Monitoring

用于结构健康监测的光纤传感解调系统的理论与方法研究

This paper introduces the architecture of DVB_C system and basic theory of QAM modulation and demodulation at first, analyzing and discussing two ways to implement the initial demodulator: simple sequencer and generating native carrier to demodulate.

本文介绍了DVB-C系统的结构和QAM调制解调的基本原理及其系统结构；分析比较了初始解调电路的两种实现方式：产生本地载波进行解调和简单序列解调。

Based on the discussion of the theory and methods of IF demodulation technology, this paper analyses the intrapulse modulation characterisitics.

在分析中频解调原理的基础上，讨论了雷达情报侦察系统中脉内调制特性的分析方法。

The paper introduces a new solution to FSK signal receiver used by railway signal control system, and analyses the theory of FSK demodulation.

本文介绍了CTCS系统专用的FSK信号接收的新方案。