载波频率

该文提出了一种新的用于多径信道的基于判决反馈的OFDM载波频率跟踪算法。

A new OFDM decision-directed carrier frequency offset tracking algorithm is presented .

高效率高精度的OFDM载波频率捕获和信道估计算法

High Efficient and Precise OFDM Carrier Frequency Acquisition and Channel Estimation Algorithms

基于训练序列的载波频率同步算法的FPGA实现

FPGA implementation of frequency synchronization arithmetic in time domain based on training sequence

一种新的OFDM系统载波频率偏移估计和跟踪方案

A Novel Carrier Frequency Offset Estimation and Tracking Scheme for OFDM

OFDM系统中一种简单的克服载波频率偏移的方法

Simple method for carrier offset correction in OFDM system

基于遗传算法的OFDM空载波频率同步的研究

Research of Genetic Algorithm-based OFDM Null Carriers Frequency Synchronization

一种有效的OFDM载波频率偏移的盲估计

An Effective Blind Estimation of OFDM Carrier Frequency Offset

OFDM的主要缺点是对载波频率偏差很敏感。

One of the principal disadvantage of OFDM is sensitivity to frequency offset .

OFDM系统中载波频率同步算法研究与仿真

Study on Carrier Frequency Synchronized Algorithm in OFDM System

基于差分空时调制的OFDM系统中的载波频率偏差估计算法

An Algorithm for Estimating Carrier Frequency Offset in the DSTM Based OFDM System

稳健的OFDM系统载波频率捕获算法

Robust carrier frequency acquisition algorithm for OFDM systems

一种新的突发OFDM传输系统定时和载波频率捕获联合算法

A Novel Joint Algorithm of Timing and Carrier Frequency Acquisition for Burst OFDM System

基于判决反馈的OFDM载波频率同步环路

A Decision-Directed OFDM Carrier Frequency Synchronization Loop

该文研究了一种基于逆变器PWM载波频率成份法的永磁同步电机无位置传感器控制策略。

A sensorless control method based on PWM carrier frequency component was researched in this paper .

通过MATLAB仿真，分析了载波频率偏差与相位偏差对系统性能的影响。

Analysis on how carrier frequency bias and phase bias influence the system performance is achieved by the Matlab emulation .

研究了卫星信号的组成：导航信息、GPS载波频率、和伪随机C/A码。

The composition of the satellite signal : navigation information , GPS carrier frequency , and pseudo-random C / A code .

准确的定时同步和载波频率同步，对OFDM系统的整体性能有着决定性的影响。

It is important for OFDM system to obtain accurate symbol timing and carrier frequency synchronization .

OFDM系统中的载波频率估计算法按照计算方法的不同可分成三种类型：数据辅助算法；

The estimation algorithms of frequency in OFDM systems can be sorted in three kinds : data-aided algorithm ;

高性能SPWM逆变器合理载波频率的选择

Optimum Selection of Switching Frequency in High Quality SPWM Inverter

本文根据OFDM系统特点，分析了OFDM系统的时域载波频率捕获和信道估计方法。

We propose new carrier frequency acquisition and channel estimation algorithms based on the time-domain analysis of OFDM system .

同步技术是OFDM最关键的技术之一，它包括载波频率同步和符号同步。

As one of the most crucial technique of OFDM , synchronization technique includes carrier frequency synchronization and symbol synchronization .

理论上音频功率放大器的PWM调制器的载波频率越高，音质效果就越好。

Theoretically , the higher the carrier frequency of PWM modulator of audio amplifier , the better the acoustical effect is .

实现简单、精度高的载波频率捕获和信道估计算法是OFDM研究的重点。

Carrier frequency acquisition and channel estimation algorithms with easy deployment and high precision are always the most challenging areas in OFDM .

因此，在OFDM通信系统中，载波频率和符号定时偏差是影响系统性能的主要因素。

Thus , in the OFDM system , symbol timing and carrier frequency offset are the main factors which affect the system performance .

从一般性的参数估计准测出发，得出了OFDM系统载波频率最大似然估计的Cramer-Rao限；

The Cramer-Rao bound of maximum likelihood estimation of carrier frequency in OFDM is presented .

采用了本地PN序列和方波联合滑动相关并作分段FFT对载波频率和码片进行粗估计的方法，同时捕获频率偏移和码片偏移。

In this paper , local PN sequence and sub-carrier are united to estimate carrier frequency and code using Partial FFT .

研究OFDMA上行载波频率偏移校正问题。

CFOs correction issue in OFDMA uplink is studied .

GPS接收机中信号捕获通过粗略调整本地复制信号的码相位和载波频率与卫星信号同步。

In a GPS receiver , the signal acquisition coarsely adjusts the code phase and the carrier frequency of locally generated replicas to align with the corresponding satellite signal .

视频信号通过声音陷波电路，消除声音载波频率，直达CRT。

The video signal is directed to the CRT through a sound trap which eliminates the sound-carrier frequency .

介绍了以载波频率ωs为基准异步SPWM波的谐波分析方法。

This paper introduces a harmonic analysis method for asynchronous SPWM on the basis of carrier frequency ω s.