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信道估计     
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  channel estimation
     Research on Channel Estimation and STBC Diversity for MIMO-OFDM System under Correlated Fading Channel
     MIMO-OFDM信道估计及相关衰落信道STBC分集研究
短句来源
     Research of Channel Estimation in Wireless OFDM System
     无线OFDM系统中的信道估计研究
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     Research of Channel Estimation and Adaptive Modulation Algorithms in MIMO/OFDM Systems
     MIMO/OFDM系统中信道估计和自适应调制算法的研究
短句来源
     The Research on Detections and Channel Estimation in MIMO-OFDM Systems
     MIMO-OFDM系统中接收机及信道估计技术研究
短句来源
     Synchronization & Channel Estimation Algorithms for Broadband Wireless Communication Systems
     宽带无线通信系统中的同步和信道估计算法
短句来源
更多       
  channel estimate
     Research on the Practical Algorithm of Channel Estimate for Joint Detection Based on Array Antenna
     基于阵列天线的联合检测信道估计实用化算法研究
短句来源
     Implementation of Channel Estimate in TD-SCDMA and Its Performance Analysis
     TD-SCDMA中的信道估计实现及其性能分析
短句来源
     A Novel Method Of Channel Estimate For Joint Detection Based On Array Antenna
     一种基于阵列天线的联合检测信道估计新方法
短句来源
     A general channel estimate model for OFDM system is proposed.
     本文根据DFT的一个性质为OFDM通信系统构造了一种通用信道估计模型。
短句来源
     The paper describes the application of channel estimation techniques in OFDM system, proposes an algorithm of channel estimation by using orthogonal channels (CEOC) which is used in PLC communication environment, this channel estimate method can not only keep the original advantage of OFDM system, but also trace the channel change and reduce the calculating complexity.
     文章详细介绍了信道估计在OFDM中的应用,提出了一种在电力线通信环境下的信道估计方法———CEOC(Channel Estimation by using Orthogonal Channels)算法。
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更多       
  channel estimator
     A sub-optimal channel estimation algorithm in orthogonal frequency division multiplexing(OFDM) system was proposed,to reduce the complexity of traditional minimum mean square error(MMSE) channel estimator,and to alleviate the performance deterioration of MMSE estimator due to the mismatch of the estimator-to-channel statistics.
     为了降低正交频分复用OFDM(Orthogonal Frequency division Multiplexing)系统中最小均方误差MMSE(Minimum Mean Square Error)信道估计算法的复杂度,并且改善由于信道的统计特性与先验知识不匹配而导致的MMSE估计性能恶化,提出了一种自适应的低秩信道估计算法.
短句来源
     A MMSE Channel Estimator Based on Adaptive Order Determination in OFDM Systems
     OFDM系统基于自适应定阶的MMSE信道估计
短句来源
     MMSE estimator is a common channel estimator in coherent OFDM systems.
     MMSE估计是OFDM系统中常用的信道估计算法。
短句来源
     A Adaptive Channel Estimator for OFDM Systems
     OFDM系统中的自适应信道估计
短句来源
     One of this thesis’s tasks is the research of the channel estimation technology used in OFDM system and proposal of the channel estimator available for WiMAX system based on 802.16 Protocol.
     本文研究内容之一为探讨OFDM的信道估计以及均衡问题,并结合802.16d协议设计WiMAX系统的信道估计器。
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  channel-estimation
     Channel-estimation based hypothesis-feedback adaptive equalization for underwater acoustic communications
     一种水声通信中基于信道估计的假设反馈自适应均衡器
短句来源
     Enhanced channel-estimation techniques for MIMO-OFDM systems
     MIMO-OFDM系统中一种有效的信道估计方法
短句来源
     In this paper, an iterative joint channel-estimation and symbol-detection algorithm based on prediction is presented for orthogonal frequency-division multiplexing systems.
     该文在现有的OFDM系统联合迭代信道估计与符号检测算法的基础上,根据信道响应的时域相关性,将预测方法引入迭代信道估计,对其进行改进。
短句来源
     Taking into account channel characteristics of high-speed mobile communication and using an RLS adaptive filter capable of tracking time variations of input statistics under non-stationary conditions,the paper presents an iterative joint channel-estimation and symbol-detection algorithm based on RLS adaptive predictor.
     在现有的OFDM系统联合迭代信道估计与符号检测算法的基础上,针对高速移动通信信道,利用RLS自适应滤波器在非平稳环境下有效跟踪输入统计量随时间变化的能力,提出了一类基于对迭代初始值进行RLS自适应预测的迭代信道估计算法.
短句来源

 

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  channel estimation
Compared with the dynamic threshold method, the balance encoding scheme can be implemented more easily, and is more robust to the channel time variant characteristics, the channel estimation of RAKE receiver and the combination techniques.
      
Sensitivity analysis of the channel estimation deviation to the MAP decoding algorithm
      
As a necessary input parameter for maximum a-posteriori(MAP) decoding algorithm, SNR is normally obtained from the channel estimation unit.
      
A joint space-frequency multiuser symbol sequence detector is developed for all active users within one macrocell without space-frequency channel estimation.
      
In comparison with schemes based on channel estimation, our algorithm need not explicitly estimate the space-frequency channel for each active user, so it has lower computation complexity.
      
更多          
  channel estimate
Application of the EM (Expectation-Maximization) algorithm to sequence estimation in an unknown channel can in principle produce MLSE (maximum likelihood sequence estimates) that are not dependent on a particular channel estimate.
      
An MMSE equalizer was used at the receiver, constructed from the channel estimate obtained as described in the previous paragraph.
      
Hence, the receiver relies on the hard decoded symbols and the known training sequence to form a new channel estimate.
      
In this section, we consider mutual coupling between antennas at the transmitter and the receiver and examine its effect on the channel estimate.
      
Magnitude of the channel estimate errors for 100 independent channels, using the conventional and decorrelating estimators.
      
更多          
  channel estimator
An improved channel estimator with multipath time delay detection and channel gain estimation is proposed.
      
The conventional Steiner channel estimator is inefficient for TD-SCDMA systems employing multi-cell joint detection because of its low estimation accuracy.
      
We model the Rayleigh flat fading channel as the second order Auto Regressive (AR) process, and use the Kalman filter as the channel estimator.
      
This smart antenna concept can be split up into a novel channel estimator and data detector which incorporate explicitely the information of the direction-of-arrival (DOA) of signals emerging from users assigned to the considered base station.
      
Without any pilot insertion and apriori knowledge, the channel estimator can adapt to various fadingchannels using a general, model-based approach.
      
更多          
  channel-estimation
Monte Carlo simulations give the performance of channel estimation and the performance comparison of our channel-estimation-based detector with decision feedback equalization, which uses the perfect channel information.
      
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