In order to improve performance of this method over frequency selective channel, we average over several symbols.
并针对频率选择性信道采用了多符号平均改善算法性能。
Modified MIMO channel estimation algorithm based on superimposed training sequence was proposed for the frequency selective channel.
针对提高无线信道的传输性能，提出了改进的基于叠加训练序列的MIMO信道估计算法。
For integer frequency offset estimation, we analyze a sequence auto-correlation based algorithm, and extend the algorithm into frequency selective channel case.
对于整数频偏估计，分析了一种基于序列自相关的算法，并将该算法推广应用到频率选择性信道中；
Frequency selective channel is one of the important problems in new generation mobile communications, and equalization technologies are applied to combat the influence of this channel.
在新一代移动通信系统中，频率选择性信道是系统所要面对的一个关键问题。
Based on the characteristic of multi-path frequency selective channel, the algorithm combines rapid table lookup and Lagrange-multiplier method to iteratively search the optimal bit allocation scheme.
算法根据多径信道选择性衰落的特性，结合查表法和拉格朗日乘子的混合迭代搜索法，最优地分配各个子载波的传输比特数。
The space-time channel estimation and multiuser detection algorithm for the uplink of multicarrier CDMA (MC-CDMA) system in frequency selective Rayleigh fading channel were investigated.
研究了频率选择性瑞利衰落信道中的同步MC-CDMA系统上行链路空时信道估计及多用户检测算法。
This paper investigates blind space-time interference suppression for MultiCarrier CDMA (MC-CDMA) system in frequency selective Rayleigh fading channel.
该文研究在频率选择性瑞利衰落信道中MC-CDMA系统的盲空时干扰抑制。
This paper investigates blind multiuser detection for asynchronous DS-CDMA in frequency selective Rayleigh fading channel.
该文研究了频率选择性瑞利衰落信道中的异步ds - CD MA系统盲多用户检测。
In this paper, a blind multiuser receiver for frequency-selective fading channel based on subspace tracking has been presented.
提出一种基于信号子空间估计，用于频率选择性衰落信道的盲多用户自适应接收机。
However, for the wireless mobile communication systems, the radio channel is frequency selective and time-varying.
对于无线通信系统，无线信道不仅是频率选择性的，而且是时变的。
The frequency time selective fading resulted from multipath dispersion and Doppler frequency shift is an important characteristic of urban mobile radio channel.
由多径色散及多普勒频移造成的频率—时间选择性衰落是城市移动无线信道的一个重要特性。
In this thesis, we study equalization techniques for OFDM over the frequency selective fading channel and doubly selective fading channel respectively.
本文的研究内容就是频率选择性衰落信道和双衰落信道下的OFDM信道均衡技术。
Generally the channel is both frequency selective and time selective.
一般的，信道既是频率选择性的又是时间选择性的。
The time- and frequency- selective fading channel is so-called doubly selective fading channel.
同时具有时间和频率选择性衰落的信道，我们称之为双衰落信道。
A two-ray model is used for the frequency selective fading channel.
频率选择性衰落信道采用了两径模型。
The simulation of error bit rate performance for multi -channel and frequency -selective Rayleigh fading is carried out, and the simulation results show that the system is.
对在多用户和频率选择性瑞利衰落环境下的下行链路的误比特率性能进行了仿真，其结果表明系统是可行的。
Demonstrating the feasibility using CS (Cyclostationary) algorithms to estimate frequency offset in selective channel.
验证了把CS(周期平稳过程算法)应用于选择性信道下进行频偏估计的可行性。
A time-varying disperse channel is a channel that contain both frequency selective fading and time selective fading.
时变色散信道则是同时存在频率和时间选择性衰落的信道。
OFDM transforms frequency-selective multipath fading channel into flat channel in the frequency domain and reduce the effect of multipath fading.
OFDM技术通过将频率选择性多径衰落信道在频域内转换为平坦信道，从而减小了多径衰落的影响。
The new coded strategy can achieve full space-time-frequency diversity over frequency selective fading channel.
在频率选择性信道中，新编码策略可以获得空时频全分集增益。
In this paper the performance of uplink in the cellular CDMA network, based on the reception of smart antenna, is analyzed in the frequency selective fading channel.
本文分析了在频率选择性信道中基于智能天线阵接收的蜂窝cd MA网络上行链路的性能。
A new transmission scheme, which combines transmit preprocessing with multiuser MIMO downlink system over frequency-selective fading channel is proposed.
提出了一种适用于频率选择性衰落信道，新的下行多用户MIMO系统预处理传输方案。
A combined channel estimation method of time-frequency-selective fading channels in MIMO-OFDM systems was proposed.
提出了一种适用于时间频率选择性衰落信道的MIMO - OFDM系统的组合信道估计方法。
The problems of carrier frequency offset estimation under the condition of the AGWN channel, frequency flat-fading channel and frequency selective-fading channel are studied in detail respectively.
本文仔细研究了在高斯白噪声信道下、频率平坦衰落信道下和频率选择性衰落信道下高精度估计信号载频偏差的问题，并对相应算法提出了一些改进办法。
The receiver performance can be greatly improved by precisely estimating frequency-selective fast-fading channel information.
频率选择性快衰落信道的精确估计对接收机性能的提高起着重要作用。
OFDM has the ability of transforming the frequency-selective channel into a collection of parallel flat-fading subchannels and therefore can be adopted in MIMO systems to combat multi-path effects.
OFDM技术可以把频率选择性衰落的信道转化成一组正交的平坦衰落的信道，因此可将OF DM技术应用在MIMO系统中来克服多径衰落的影响。
The problem of channel estimation and tracking for MIMO time-varying frequency-selective channels is investigated based on training sequences.
本文主要研究了基于训练序列的多输入多输出（MIMO）时变频率选择性衰落信道的估计与跟踪问题。
Therefore, system acquisition performance can be improved if diversity receiver is adopted for the frequency-selective fading channel.
因此在频率选择性衰落信道中，采用分集接收可以改善系统的捕获性能。
The performance of QPSK signal transmitted through nonlinear mobile satellite channel is analyzed based on presumed frequency non-selective fading.
在平坦衰落假设基础上，分析了QPS K信号通过移动卫星信道的非线性性能。
The model of the MIMO-OFDM system in doubly-selective channels is derived and a lower bound of mean squared error(MSE) of the channel estimator using frequency domain pilot is presented.
基于双衰信道的频域响应，提出了一类双衰信道下多天线正交频分复用（MIMO-OFDM）系统的最优化频域导频设计方案。
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