1) synchronous carrier system
同步载波系统
2) carrier synchronization
载波同步
1.
A joint method of carrier synchronization and channel estimation in OFDM system;
OFDM系统中联合信道估计的载波同步算法的研究
2.
Research on an improved BPSK carrier synchronization method;
一种改进的BPSK载波同步方法的研究
3.
Research on Carrier Synchronization in OFDM System;
OFDM系统载波同步问题研究
3) carrier recovery
载波同步
1.
Algorithms of timing recovery loop and carrier recovery loop employed are analyzed and simulated.
根据QPSK信号的特点,对载波同步算法进行了简化。
2.
In the paper, direct band pass sampling was used to QPSK signal with 70 MHz IF, and complete demodulation with FPGA which has carrier recovery and timing synchronization algorithms, using reconfigurable device.
本文就是对 70MHz的中频QPSK信号进行直接带通采样,然后送入已写入载波同步算法和定时同步算法的FPGA中,从而完成对QPSK信号的全数字化解调,由于采用了可动态配置的FPGA来实现QPSK信号的解调,因此只需通过软件对其参数进行适当的设置,就可以完成对多种数据传输率、多种中频载波的QPSK信号的解调。
4) frequency synchronization
载波同步
1.
Analysis of several carrier frequency synchronization algorithms for OFDM;
OFDM中的载波同步技术介绍
2.
A scheme based on cyclic-shifted preamble sequences is proposed for carrier frequency synchronization in OFDM system.
提出一种基于循环移位前导序列的正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)系统载波同步方法,该方法根据离散傅里叶变换(Discrete Fourier Transform,DFT)的时移性质,构造循环移位前导序列,并设计了两个频偏估计器。
3.
Therefore, high transmission performance of OFDM takes the time-frequency synchronization as a premise.
其次,研究了数据辅助型的载波同步算法。
5) carrier frequency synchronization
载波同步
1.
The mixed structural algorithms of carrier frequency synchronization for OFDM in high speed mobile environment;
高速移动环境下OFDM系统载波同步的混合结构算法
2.
Based on summarizing every typical method of the carrier frequency synchronization,in this paper a new frequency offset estimation algorithm on fast fading channels is presented.
在对OFDM系统各类典型的数据辅助的载波同步方法总结的基础上,提出了一种适于快衰落信道环境的载波频偏估计方法,算法分析及仿真结果表明该方法可以有效消除快衰落环境对载波频偏引起的误差,并可在多种移动环境下使用,此外,由于提出的算法相对较低的运算,可以适用于对功耗或体积有特殊要求的小型移动终端。
3.
Based on analyzing OFDM signal model of carrier frequency offset, an efficient algorithm of carrier frequency synchronization using one OFDM preamble symbol is presented.
在分析OFDM系统载波频偏信号模型的基础上,提出了基于单OFDM前导符号载波同步的高效算法。
6) carrier wave synchronization
载波同步
1.
Time synchronization and carrier wave synchronization are cruxes of receiver.
时钟同步和载波同步是接收机的关键问题,传统模拟解调可靠性、稳定性差,调试复杂。
2.
Then the performance of the system was compared with the other systems, and a kind of time synchronization and carrier wave synchronization method was introduced.
分析了其调制原理,和体制性能,与其他体制作了简单比较,并针对解调结合现有算法,提出了载波同步和定时同步的实现。
补充资料：同步
1.同时起步，协调一致。 2.物理学名词。两个或几个随时间变化的量，在变化过程中保持一定的相对关系。
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