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1. 解放军信息工程大学信息系统工程学院,河南 郑州 450002
2. 解放军61081部队,北京 100094
[ "郭一鸣(1990-),男,河北邢台人,解放军信息工程大学博士生,主要研究方向为通信信号处理、信号逆向分析等。" ]
[ "彭华(1973-),男,江西萍乡人,解放军信息工程大学教授、博士生导师,主要研究方向为软件无线电、通信信号处理等。" ]
[ "杨勇(1988-),男,云南大理人,解放军信息工程大学博士生,主要研究方向为盲信号处理、信道编译码技术等。" ]
[ "魏雪娟(1988-),女,河南兰考人,解放军信息工程大学硕士生,主要研究方向为通信信号处理等。" ]
[ "王浩(1987-),男,河南信阳人,解放军 61081 部队助理工程师,主要研究方向为卫星导航信号接收处理、抗干扰等。" ]
网络出版日期:2017-03,
纸质出版日期:2017-03-15
移动端阅览
郭一鸣, 彭华, 杨勇, 等. 基于DG-PSP的不同符号速率PCMA信号盲分离算法[J]. 通信学报, 2017,38(3):92-100.
Yi-ming GUO, Hua PENG, Yong YANG, et al. Blind separation algorithm of PCMA signals with different symbol rates based on DG-PSP[J]. Journal on communications, 2017, 38(3): 92-100.
郭一鸣, 彭华, 杨勇, 等. 基于DG-PSP的不同符号速率PCMA信号盲分离算法[J]. 通信学报, 2017,38(3):92-100. DOI: 10.11959/j.issn.1000-436x.2017063.
Yi-ming GUO, Hua PENG, Yong YANG, et al. Blind separation algorithm of PCMA signals with different symbol rates based on DG-PSP[J]. Journal on communications, 2017, 38(3): 92-100. DOI: 10.11959/j.issn.1000-436x.2017063.
针对非合作接收不同符号速率PCMA混合信号,提出一种基于双网格逐幸存路径处理(DG-PSP
double grid per-survivor processing)的分离算法。将2路信号分量的信道状态与输入分别视为2组动态网格,通过分别迭代更新2组网格状态实现混合信号重构,进而实现PCMA信号盲分离。重点研究了联合译码的迭代分离结构,并对不同参数估计误差下算法性能做了详细分析比较。所提算法复杂度与传统PSP算法相当,同时仿真结果表明,算法性能逼近联合界,当采用迭代处理时,在误比特率10
−2
数量级上经过一次迭代就能获得2 dB的信噪比增益,经过2次迭代则有近3 dB的信噪比增益。
A blind separation algorithm was proposed for PCMA signals with different symbol rates based on double grid per-survivor processing (DG-PSP).The channel states and two input signal components were treated as two dynamic grids
receiving mixed-signal reconstructed by respectively iterative updating the two groups of grid status
thus achieving blind signal separation.The joint iterative decoding separation structure was focused
and a detailed analysis and comparison under different error estimation of parameters was shown.The complexity of the algorithm is similar to the traditional PSP algorithm.Simulation results show that
a gain of about 2 dB in signal-noise ratio can be obtained after the first iteration at a bit error rate of 10
−2
and a gain of nearly 3 dB in signal-noise ratio can be obtained after the sec
ond iteration.
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