载波同步

OFDM系统中联合信道估计的载波同步算法的研究

A joint method of carrier synchronization and channel estimation in OFDM system

一种基于连续导频的OFDM载波同步算法

Carrier synchronization algorithm for OFDM based on continuous pilots

基于循环移位前导序列的OFDM载波同步方法

Carrier Frequency Synchronization Scheme of OFDM Based on Cyclic - shifted Preamble Sequences

高速移动环境下OFDM系统载波同步

Carrier Frequency Synchronization for OFDM in High Mobile Environment

CDMA低轨卫星通信中载波同步技术的研究

Research on Carrier Synchronization in CDMA LEO Satellite Communications

基于FFT和卡尔曼滤波器的载波同步方法的研究

Carrier Synchronization Method Based on FFT and Kalman Filter

最后，分析了所有子载波同步发送数据，即下行OFDM系统下的盲同步参数估计。

At last , the OFDM system in which all subcarriers bear data synchronously is investigated .

论文给出了接收机的捕获模块，跟踪模块，载波同步模块在FPGA中的具体实现。

The paper gives the implement of the acquisition module , tracking module and carrier demodulation module in FPGA .

首先研究了基于DDS的数字混频技术及载波同步技术。

Firstly , digital mixing and carrier synchronization based on DDS are studied .

一种基于多个OFDM符号的载波同步和定时同步算法及在TD-SCDMA中的应用

Estimation algorithm of OFDM carrier and timing synchronization based on multi-symbols and application in TD-SCDMA

在载波同步模块的设计过程中，本论文改进设计了ML载波同步算法，提出通过联合相关平均和角度平均来进行载波频率偏差估计。

In the frequency synchronization , we design a combined correlation average and angle average structure to estimate the frequency offset accurately .

基于自适应滤波的TDMA系统载波同步研究

The Research on TDMA System Carrier Synchronization Based on Progressive Refinement

OFDM系统基本上有三类同步方式：符号定时同步、载波同步、采样钟同步。

There are three kinds of synchronal modes in OFDM system : symbol timing synchronization , carrier synchronization , sampling-bell synchronization .

OFDM系统同步包括定时同步和载波同步，其中定时同步又分为符号同步和抽样同步。本文主要是研究定时同步，而载波同步只是简单的讨论，因为在这项目中这是另有负责人。

Synchronization of OFDM include timing synchronization and carrier synchronization , and timing synchronization also include symbol synchronization and clock synchronization .

基于Costas环的OFDM载波同步算法

OFDM Carrier Synchronization Algorithm Based on Costas Loop

MC-CDMA系统载波同步性能分析与仿真

Carrier Synchronous Performance Analysis and Simulation of MC - CDMA System

恒包络MIMO-OFDM系统中的盲载波同步

Blind Frequency Synchronization for MIMO-OFDM Systems with Constant-Modulus

但是，OFDM技术应用于无线通信系统中，存在的致命问题是对载波同步非常敏感，并且峰均比较高。

However , the vital problems when using OFDM in wireless communication systems are its sensitivity to carrier synchronization and high peak-to-average ratio .

一种MPSK全数字接收机载波同步新方法

A MPSK Carrier Synchronization New Method in all Digital Receiver

编码辅助载波同步的思想是利用Turbo译码器输出的软信息提高参数估计的质量。

The ideal behind CA synchronization is to use the soft information obtained from the Turbo decoder to improve the estimation quality .

本文第三章研究了多天线QAM系统的载波同步和信道均衡。

In chapter 3 , carrier synchronization and equalization of multi-antenna QAM systems are studied .

在载波同步中，采用扫频估计和ML算法联合估计方案实现载波粗同步。

As to carrier frequency offset estimation , a joint estimation base on frequency scanning estimation and ML estimation is used to finish carrier frequency coarse synchronization .

但是OFDM系统在实现上存在着不少的难点，诸如载波同步问题，具有较高的峰均功率比以及信道估计问题。

There are some difficulties in the implementation of OFDM systems , however , such as carrier synchronization , high peak-to-power ratio and channel estimation .

一种适于DSPs实现的BPSK载波同步方法

A BPSK Carrier Synchronization Method Based on DSPs

对于MIMO-OFDM系统而言，准确、高效的同步，特别是载波同步，是提高系统性能的关键和难点。

The efficient and accurate synchronization , especially the carrier frequency synchronization , are critical for MIMO-OFDM system .

一种改进的BPSK载波同步方法的研究

Research on an improved BPSK carrier synchronization method

CMMB接收机符号同步与载波同步算法设计

Design of Symbol Synchronization and Carrier Synchronization for CMMB System

v&v算法非常适用于PSK突发信号的载波同步。

The V & V algorithm is very suitable for carrier synchronization of burst signal .

BPSK载波同步技术的研究

Research on Carrier Synchronization Technique in BPSK

基于CMMB的多载波同步的算法研究与实现

Algorithm Research and Implementation on Multicarrier Synchronization of CMMB