助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   maximum likelihood sequence detection 的翻译结果: 查询用时:0.008秒
图标索引 在分类学科中查询
所有学科
电信技术
更多类别查询

图标索引 历史查询
 

maximum likelihood sequence detection
相关语句
  最大似然序列检测
     Computer simulation results show that the computational complexity of this simplified Kalman-RSSE-PSP maximum likelihood sequence detection receiver is less than recursive least square(RLS) -RSSE-PSP MLSD receiver,meanwhile its bit error rate performance is lower than RLS-RSSE-PSP MLSD receiver.
     仿真结果表明,这种简化的Kalman-RSSE-PSP最大似然序列检测接收机,具有相对较低的计算复杂度,误码率性能也优于同衰落率条件下采用递归最小二乘(RLS)-RSSE-PSP算法的最大似然序列检测接收机.
短句来源
     Simulation results show: although the proposed algorithm is degraded by 2dB at 10-3 bit error rate compared with coherent Maximum Likelihood Sequence Detection(MLSD), it is more appropriate and robust to the situation when the carrier recovery is difficult.
     仿真结果表明:所提出的算法比相干最大似然序列检测在10-3误比特率时信噪比损失约为2dB,但它对于载波恢复困难的情形更为合适和稳健。
短句来源
     Maximum likelihood sequence detection (MLSD) of digital signaling subject to intersymbol interference (ISI) and additive white Gaussian noise (AWGN) is considered.
     本文研究了在白高斯噪声干扰下,符号干扰(ISI)信道的最大似然序列检测(MLSD)技术。
短句来源
     To overcome the high computational complexity problem of per-survivor-processing(PSP) algorithm in maximum likelihood sequence detection(MLSD) method and the real time channel tracking problem for fast Rayleigh fading channel,a reduced-state sequence estimation(RSSE) with per-survivor processing for Viterbi algorithm and reduced complexity Kalman channel tracking technique is studied in maximum likelihood sequence detection receiver.
     针对快速Rayleigh衰落信道下,逐幸存路径最大似然序列检测(MLSD)接收机中过于复杂的计算量问题和实时信道跟踪难题,综合采用了简化的Kalman信道跟踪算法和减状态的逐幸存路径(RSSE-PSP)Viterbi算法,实现了更简化的最大似然序列检测接收机.
短句来源
     Computer simulation show that in the presence of a convolution outer code,the proposed soft decision adaptive decoding outperforms maximum likelihood sequence detection (MLSD) based hard decision decoding by 1~2dB over slowly or moderately fast time varying channels characterized by the Doppler frequency shift less than 60Hz.
     计算机仿真结果表明 :在存在卷积外码的情况下 ,与基于最大似然序列检测的单向硬判决解码相比 ,基于所提出算法的软判决解码在多普勒频移小于 6 0赫兹的时变信道中可提供 1~ 2dB的增益 .
短句来源
更多       
  相似匹配句对
     Maximum Likelihood Estimates for Heteroskedastiy
     异方差的估计与实证
短句来源
     Totally Maximum Likelihood Estimation
     完全极大似然估计
短句来源
     is maximum.
     的影响极大。
短句来源
     Maximum-likelihood-sequence-detection in DFH with its characteristics
     差分跳频最大似然序列检测及其性能分析
短句来源
     Research on Technique of Maximum-Likelihood Sequence Estimation Equalization
     最大似然序列估计均衡技术研究
短句来源
查询“maximum likelihood sequence detection”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  maximum likelihood sequence detection
Viterbi decoders are widely used at the receiver in order to perform maximum-likelihood sequence detection in sub-exponential time.
      
Such identification can facilitate channel equalization as well as maximum likelihood sequence detection.
      
Optimum multiuser to the criteria of minimum probability of error and maximum likelihood sequence detection are derived in Section II.
      


Maximum likelihood sequence detection (MLSD) of digital signaling subject to intersymbol interference (ISI) and additive white Gaussian noise (AWGN) is considered. A new and simple bit error probability bound is obtained, especially for the low and high SNR regions. In addition, in the case of infinite-length ISI, the performance loss due to the ISI tends to zero for physical channels.

本文研究了在白高斯噪声干扰下,符号干扰(ISI)信道的最大似然序列检测(MLSD)技术。导出了一个新的比特差错概率上界,其界紧于Forney界。证明了在符号干扰无限严重时,由符号干扰所造成的性能损失,对任何物理信道将逐渐减小为零。

We propose an adaptive decoding algorithm for space time trellis code (STTC) used in the TDMA downlink.The bi directional per survivor processing (BD PSP) is adopted in this algorithm to fully utilize the preambles of successive slots.First,the forward PSP makes soft decision with adaptive channel tracking based on the preamble of current slot.Then the backward PSP,taking the primary soft decision from forward PSP as the a priori knowledge,makes improved final soft decision output with adaptive channel...

We propose an adaptive decoding algorithm for space time trellis code (STTC) used in the TDMA downlink.The bi directional per survivor processing (BD PSP) is adopted in this algorithm to fully utilize the preambles of successive slots.First,the forward PSP makes soft decision with adaptive channel tracking based on the preamble of current slot.Then the backward PSP,taking the primary soft decision from forward PSP as the a priori knowledge,makes improved final soft decision output with adaptive channel tracking based on the preamble of next slot.Computer simulation show that in the presence of a convolution outer code,the proposed soft decision adaptive decoding outperforms maximum likelihood sequence detection (MLSD) based hard decision decoding by 1~2dB over slowly or moderately fast time varying channels characterized by the Doppler frequency shift less than 60Hz.

本文提出一种针对TDMA下行链路的空时格形码自适应解码算法 .为充分利用下行链路相邻时隙前导序列中的正交导引信号 ,该解码算法采用了双向逐幸存路径处理技术———正向处理利用基于当前时隙前导序列的自适应信道估计实现正向解码 ,并将软判决结果传递给反向处理模块 ;以正向软判决为先验知识 ,反向处理利用基于下一时隙前导序列的自适应信道估计实现反向解码 ,并将反向软判决作为最终结果输出 .计算机仿真结果表明 :在存在卷积外码的情况下 ,与基于最大似然序列检测的单向硬判决解码相比 ,基于所提出算法的软判决解码在多普勒频移小于 6 0赫兹的时变信道中可提供 1~ 2dB的增益 .

The problem of adaptive decoding of space time trellis code (STTC) on the mobile wireless channels is considered in this paper.After analyzing the maximum likelihood sequence detection (MLSD) of STTC transmission burst with no periodically inserted pilot symbols,we show that per survivor processing (PSP) can be used to obtain a practical approximated MLSD in this situation.Based on this,a PSP decoder with self tuning Least Mean Square channel tracking is proposed with the advantage that there are...

The problem of adaptive decoding of space time trellis code (STTC) on the mobile wireless channels is considered in this paper.After analyzing the maximum likelihood sequence detection (MLSD) of STTC transmission burst with no periodically inserted pilot symbols,we show that per survivor processing (PSP) can be used to obtain a practical approximated MLSD in this situation.Based on this,a PSP decoder with self tuning Least Mean Square channel tracking is proposed with the advantage that there are only fading rate independent parameters to be pre determined.Computer simulation results are included to support our development.

本文探讨了无线移动信道中空时格形码的一种自适应解码技术 .通过分析无周期间插正交导引信号下空时格形码的最大似然序列检测 ,指出可利用逐幸存路径处理得到该情形下可实用的最大似然序列检测算法 ;以此为依据 ,结合利用自调整LMS算法实现的信道跟踪 ,本文提出一种空时格形码的自适应解码器 ,该解码器具有所采用信道跟踪参数与信道衰落速度无关的优点 ;文章最后给出计算机仿真结果

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关maximum likelihood sequence detection的内容
在知识搜索中查有关maximum likelihood sequence detection的内容
在数字搜索中查有关maximum likelihood sequence detection的内容
在概念知识元中查有关maximum likelihood sequence detection的内容
在学术趋势中查有关maximum likelihood sequence detection的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社