导频信道

由于公共导频信道无功率控制，有可能在接收端接收到的公共导频信号的功率很低，使得信道估计的误差变大。

Because there is no power control in CPICH , the received common pilot signal power is possibly very low if the mobile is far from the base station , and this time the channel estimates is inaccurate .

分析了WCDMA下行链路STTD发射分集的结构，给出了利用公共导频信道进行信道估计的算法及性能。

The space-time transmit diversity ( STTD ) architecture in WCDMA downlink is analyzed and the channel estimation method based on the Common Pilot Channel ( CPICH ) is investigated .

无线OFDM系统中基于导频信道估计方法的性能比较

Performance Comparison of Pilot-symbol-aided Channel Estimation Methods for Wireless OFDM Systems

OFDM系统的导频信道估计方法的设计与性能分析

Design and performance analysis about channel estimation method using pilot in OFDM system

二维内插的OFDM导频信道估计的研究

Research of 2-D interpolation in OFDM pilot-assisted channel estimation

基于导频信道估计的自适应Turbo编码调制性能

Performance Analysis of Adaptive Turbo Coded Modulation Based on Pilot-Symbol-Aided Channel Estimation

MIMO-OFDM系统中基于二维散布导频信道估计

On the pilot-based channel estimation method in MIMO-OFDM system

基于802.16d的OFDM导频信道估计

Pilot-Symbol-Aided Channel Estimation for OFDM Systems Based on 802.16d

本文针对WCDMA这一最新改变，给出了利用公共导频信道进行信道估计，实现相干RAKE接收的模型算法、性能分析及仿真结果。

A RAKE receiver for WCDMA downlink physical channel with the channel estmation by the CPICH is presented .

时域频域模型被应用于自适应OFDM系统中的辅助导频信道和比特分配算法。

The time-frequency method was used in adaptive orthogonal frequency division multiplex ( OFDM ) system in assistance of the channel and bit allocation .

文章结合MIMO-OFDM（多输入多输出-正交频分复用）无线通信系统，研究了一种基于变换域插值的二维导频信道估计算法。

This paper makes a research on two-dimensional pilot channel estimation for MIMO-OFDM system based on space transform precipitation .

公共导频信道的捕获是WCDMA系统3步同步小区搜索算法的第3步，它给出对基站主扰码的判决信息。

The acquisition of CPICH ( common pilot channel ) provides the primary scrambling code of one base station which is the third step of cell search algorithm in WCDMA systems .

cdma1x无线子系统导频信道功率分配分析

Analysis of cdma 1x System Pilot Channel Power Assignment

首先，论文讨论了固定宽带无线接入系统下的信道估计算法，比较了现有导频信道估计算法在SUI典型慢变信道下的性能。

Firstly , channel estimation in fixed broadband wireless access systems is discussed . We give their performance comparison of some conventional pilot-symbol-aided channel estimation algorithms in SUI channels which are typically slow fading .

在分析TD-SCDMA系统的信道基础上，对系统中影响覆盖的因素进行了阐述和分析，最后简单介绍了广播信道以及下行导频信道的覆盖特点。

Based on analyzing the channel of TD-SCDMA system , it mainly expatiates and analyses the factors that affect TD-SCDMA system coverage . The coverage features of broadcast channel and downlink pilot channel are also introduced in brief .

本文基于欧盟E2R项目已提出的异构网络中CPC（感知导频信道）广播信道，对CPC可以广播的内容进行了研究。

Based on the Cognitive Pilot Channel ( CPC ) concept proposed in the European project E2R , a further study on the content of CPC is proposed in this paper .

将多时隙加权平均算法（WMSA）引入EV-DO系统，并提出了利用MAC信道信息辅助导频信道进行信道估计的方法。

In this paper , we introduced the WMSA into EV-DO , and put forward the estimation algorithm of using MAC channel into assistant pilot channels .

在二维RAKE接收机中，通常仅用导频信道来估计信道矢量，当导频功率较低时，估计误差较大。

Channel vector is estimated only by utilizing pilot channel in 2-D RAKE receiver conventionally . The estimation error will be large when the power of pilot signal is weak . A novel algorithm of channel vector estimation is proposed in this paper .

在接收端，通过对反向导频信道的相位进行跟踪，经过差分检测恢复出发送的CQI信息，并通过去除附加相位操作，使附加的相位对反向信道的影响最小。

The CQI message is conveyed into the phase variation with DPSK modulation . At the receiver side , we trace the phase by pilot channel and recover CQI information by difference detection .

本文对此提出了新的AFC算法：用最大似然方法估计衰落信道，得到间断导频信道的幅度和相位，并在一个时隙中进行最大比合并，从而得到一个判决变量。

In this algorithm , we first estimate the fading channel to get the phases and amplitudes of the pilot part symbols , and then combine estimations of multiple paths in one slot length , i.e. , obtain one decision variable in each slot .

一种适于小波包多载波系统导频信道估计的方法

A Method of Pilot Channel Estimation Scheme for Orthogonal Wavelet Packet Modulation System

多用户检测中基于导频信道的自适应算法

Adaptive Algorithm Based on Pilot Channel for Multiuser Detection

一种新的时分导频信道估计算法

A New Channel Estimation Algorithm for Time-Multiplexed Pilot Channel

基于梳状导频信道估计法主要对数据子载波插值估计法进行了研究，分别线性插值法，二次多项式插值法和基于变换域插值法进行了研究。

Comb pilot frequence channel estimation studies interpolation estimation on data sub-carrier . And also discusses linear interpolation method , Second polynomial interpolation method and interpolation based on transform domain .

适用于单一导频信道的鉴别器性能优于适用于单一数据信道的鉴别器，本文利用导频信道信息使数据信道能够使用不受导航数据限制的鉴别器的原理，提出新的鉴别器组合方式。

In this paper , utilizing the information of pilot channel makes the data channel can use the discriminator without restrictions of navigation data , a new combination of discriminators has been proposed .

然后，本文从平坦衰落信道下的导频信道估计算法的研究出发，对时变信道下的导频估计算法进行研究和探讨。

Then , the paper starts form the studies of pilot channel estimation algorithm under flat fading channel , and next , researches and studies pilot channel estimation algorithm under the time varying channel .

OFDM系统中一种新的导频辅助信道估计算法

A Novel Algorithm for Pilot-Aided Channel Estimation in OFDM Systems

OFDM系统基于导频的信道估计技术研究

Study on Channel Estimation Based on Pilot-Assisted in OFDM Systems

DFT扩展的MIMO-OFDM系统中基于导频的信道估计算法

Pilot - based channel estimation for DFT spread MIMO OFDM system

基于加窗FFT的2维导频辅助信道估计

Windowed FFT based 2D-pilot-symbol-aided channel estimation