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OFDM的最新IEEE的文档，用于信道和载波频偏的联合估计算法，比较前沿-OFDM latest IEEE documents, for the channel and the joint carrier frequency offset estimation algorithm to compare the forefront of
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QPSK开环载波同步技术研究 频偏估计算法-Open-loop carrier synchronization QPSK Research Frequency Offset Estimation Algorithm
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In this paper, a novel demodulation structure in
high-frequency (HF) channel is introduced and studied.Frequency-offset estimation, ractionally spaced adaptive equalization and carrier recovery techniques are involved.Frequency-offset correction is
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channel estimation is single carrier frequency division multiple access also called as DFT spread OFDM.
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：载波频率偏移是OFDM系统实现的关键问题之一。分析了OFDM 系统载频偏移估计的2
种算法，即利用循环前缀和训练序列方法。它们均为最大似然估计方法。分别讨论了它们的基本
思想、实现方法和仿真结果。可以看出基于循环前缀算法复杂度较小，精度不高，而基于训练序列
的算法有较高的估计精度，但降纸了系统传输效率。-Abstract：Carrier frequency ofset is one of the key problems in OFDM system．Two foundationa
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Orthogonal Frequency Division Multiplexing (OFDM)
systems are more sensitive to timing and frequency offsets than
single carrier systems. This Paper presents a method of joint time
and frequency synchronization for OFDM systems. The
synchroni
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该文给出了一种QAM信号载波频偏估计算法。-This paper presents a QAM signal carrier frequency offset estimation algorithm.
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利用扩展卡尔曼算法( EKF)对高动态直接扩频信号的载波相位和频率进行了估计,并利用载波辅助技术测量载波相位的变化值来
校正伪码延时环,减小多普勒频移对伪码延时的影响,得到了精确的延时估计值,提
高了伪码延时锁定环的动态跟踪性能.-The PN delay loop is adjusted through measuring the varied value of carrier phase with carrier aiding technology. The effect of Do
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一种可编程的OQPSK载波相位估计算法，该算法实用性强，复杂度低。-A programmable OQPSK carrier phase estimation algorithm, which is practical, low complexity.
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基于二阶循环累积量的载波频率估计-Second-order cyclic cumulants based carrier frequency estimation
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this thesis propose channel estimation schemes in a
multiple antenna multiple carrier transmission over mobile radio channels
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本文档描述环载波通信卫星系统的估计算法，适用于剩余频率偏移补偿。-This document describes the estimation algorithm for loop carrier satellite communication system, suitable for residual frequency offset compensation.
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OFDM Carrier Frequency
Offset Estimation
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OFDM is a multi-carrier transmission technique. It converts the frequency selective fading channel into a collection of parallel flat fading sub-channels which simplifies the structure of a receiver. OFDM has been widely used in communication system
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Application of spread spectrum for satellite land mobile systems is difficult in satellite link because of synchronization and
providing code or considerable Doppler shift. This is particularly high for LEO satellites. So that, a Doppler shift carr
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Timing and Carrier Synchronization With Channel Estimation in Multi-relay networks
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This article contains analyses of the performance of various carrier synchronization
loops for offset quadrature phase-shift-keying (OQPSK) modulation, all
motivated in one form or another by the maximum a posteriori (MAP) estimation
of carrier
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As each user in OFDMA based IEEE 802.16e network has different carrier frequencies, synchronization of carrier frequency offset (CFO) is a very complex task. The hardware implementation of the existing schemes is very expensive. Estimation and compen
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信号载波估计，可适用于多种信号的载波频率估计、解调等。(Signal carrier estimation can be applied to carrier frequency estimation and demodulation of various signals.)
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In this paper, we investigate blind channel estimation for Multiple Input Multiple Output (MIMO) multi-carrier
CDMA (MC-CDMA) systems in the uplink scenario. An Autocorrelation Contribution Matrix (ACM) method is proposed in
comparison with the sub
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