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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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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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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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Analysis of Carrier Frequency Selective Offset Estimation - Using Zero-IF and ZCZIn MC-DS-CDMA-Analysis of Carrier Frequency Selective Offset Estimation- Using Zero-IF and ZCZIn MC-DS-CDMA
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：LTE(Long Term Evolution，长期演进)系统中的小区初始搜索过程通过分别检测主同步信号(Primary Synchronization Signal，PSS)和辅同步信号(Secondary Synchronization Signal，SSS)来完成，搜
索结果包括小区组ID、符号定时、频偏估计、组内小区ID以及帧定时[1]。然而，若接收信号 1IDN 2IDN
中存在整数倍频偏，则由于时域的相位旋转，主
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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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This paper depicts the development of Orthogonal
Frequency Division Multiplexing a historical perspective.
A summary of major research milestones are noted that
contributed to modern-day OFDM. These contributions
include the use of discrete F
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Signal identification represents the task of a receiver
to identify the signal type and its parameters, with applications
to both military and commercial communications. In this paper,
we investigate the identification of spatial multiplexing (
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本论文中，一个混合载波频率偏移估计方案用于基于通用滤波多载波的系统。 此方案所述CFO估计器基于最小平方（LS）准则首先导出以获得粗略频率偏移估计使用大频率搜索步骤。 接着，通过其精确估计残留频率偏移自相关操作补偿。 该算法具有较大估计的特点范围以及更高的估计精度。-In this letter, a robust hybrid carrier frequency offset
(CFO) estimation scheme based on training symbols is devi
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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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