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《Journal of Data Acquisition and Processing》 2011-05
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Robust Blind SNR Estimation Method Based on Subspace Decomposition

Zhang Jincheng,Peng Hua(Institute of Information Engineering,Information Engineering University of PLA,Zhengzhou,450002 China)  
To solve the poor robustness problem of the signal and noise subspace dimension estimation in the subspace based algorithm,it uses the knowledge of oversampling rate and proposes a new method to built the autocorrelation matrix,which reduces the relevance of data in the matrix,thus improving the precision of the estimation.For the fact that the minimum distance length(MDL) criteria can only accurately estimates the dimension in limited signalto-noise ratio(SNR) scope,a noise power method is introduced to estimate the signal subspace dimension,which improves the performance of the original algorithm when the SNR is too low or too high,so that the SNR bound of the estimation is augmented.Simulation results show that the new method can directly deal with the intermediate frequency(IF) signal with a better estimation performance and it is not sensitive to the shaping filter roll-off factor and modulation mode.
【Fund】: 国家自然科学基金(61072046)资助项目
【CateGory Index】: TN911.23
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【Citations】
Chinese Journal Full-text Database 6 Hits
1 YANG Peng,PENG Geng,LIU Zheng,WU Jing(School of Electronic Science and Engineering,NUDT,Changsha 410073,China);A New Method Based on Eigenvalue Analysis for Blind SNR Estimation[J];Electronic Information Warfare Technology;2009-03
2 FAN Hai-bo,CHEN Jun,CAO Zhi-gang(Dept. of Electronic Engineering, Tsinghua University, Beijing 100084, china);An Algorithm of SNR Estimation for Non-Constant Envelope Signal in the AWGN Channel[J];Acta Electronica Sinica;2002-09
3 Sui Dan Ge Lin-dong (Institute of Information and Engineering, Information Engineering University of PLA, Zhengzhou 450002, China);A Novel Blind SNR Estimator Based on the Modified PASTd Algorithm for IF Signals[J];Journal of Electronics & Information Technology;2007-07
4 LIU Yuan-tao,GE Lin-dong,WANG Bin(School of Information Engineering,PLA Information Engineering University,Zhengzhou 450002);Blind Channel Order Estimation Algorithm Based on Noise Power[J];Computer Engineering;2008-09
5 HUA Meng, ZHU Jin-kang, GONG Ming (PCN&SS Lab, USTC, Hefei 230027, China);Blind SNR estimation based on cyclostationarity[J];Journal on Communications;2006-09
6 CHANG Liang, WANG Fu-ping (State Key Lab of Power System, Department of Electrical Engineering, Tsinghua University, Beijing 100084,China);Blind SNR estimation in non-cooperative communications[J];Journal on Communications;2008-03
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 SUN Gang-can1,AN Jian-ping2,YANG Jie2,YANG Kai2(1.Information Engineering School,Zhengzhou University,Zhengzhou,He'nan 450052,China; 2.School of Information and Electronics,Beijing Institute of Technology,Beijing 100081,China);Signal and Noise Ratio Estimation Method in Non-Cooperative Communication[J];Transactions of Beijing Institute of Technology;2009-08
2 MA Xin,LU Zhou-xun(College of Information Science and Engineering,Nanjing University of Technology,Nanjing 210009,China);An Improved Modulation Recognition Method under Lower SNR for Cognitive Radio[J];Telecommunication Engineering;2009-09
3 LI Cheng-cheng, WANG Fang-zong(College of Electrical Engineering & Information Technology, China Three Georges University, Yichang 443002, Hubei, China);Projection Approximation Subspace Tracking Algorithm for Harmonics Detection[J];Electrical Measurement & Instrumentation;2009-04
4 LU Manjun1,2,SI Xicai1(1 School of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China;2 State Key Laboratory of Information Control Technology for Communication System,Zhejiang Jiaxing 314001,China);Performance Analysis of Moment-based Blind SNR Estimation Algorithm[J];Journal of Projectiles,Rockets,Missiles and Guidance;2009-04
5 GONG Feng-xun(Tianjin Key Laboratory for Advanced Signal Processing, CAUC, Tianjin 300300, China);Analysis of Wireless DVB Receiving System Based on MUDS[J];Video Engineering;2006-04
6 YANG Peng,PENG Geng,LIU Zheng,WU Jing(School of Electronic Science and Engineering,NUDT,Changsha 410073,China);A New Method Based on Eigenvalue Analysis for Blind SNR Estimation[J];Electronic Information Warfare Technology;2009-03
7 XU Hua,FAN Long-fei,ZHENG Hui (National Defence key Laboratory of Blind Prolessing of Sigrals,Southwest Inst.of Electron & Telecom.Techn.,Chengdu,Sichuan 610041,China);A Blind SNR Estimation Algorithm for QAM Signals[J];Acta Electronica Sinica;2005-04
8 Sui Dan Ge Lin-dong (Institute of Information and Engineering, Information Engineering University of PLA, Zhengzhou 450002, China);A Novel Blind SNR Estimator Based on the Modified PASTd Algorithm for IF Signals[J];Journal of Electronics & Information Technology;2007-07
9 Peng Geng Huang Zhi-tao Lu Feng-bo Jiang Wen-li (School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China);Fast Blind SNR Estimation of IF Communication Signals[J];Journal of Electronics & Information Technology;2010-01
10 Yu Zhi-ming Guo Li-li Sun Zhi-guo(School of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China);Blind Recognition Algorithm of Multi-carrier Modulation Signal under the Multi-path Channel[J];Journal of Electronics & Information Technology;2010-07
China Proceedings of conference Full-text Database 1 Hits
1 Chang Liang~1 Wang Fu ping~2 (1.State Radio Monitoring Center,Beijing,100037;2.Laboratory for circuits and systems, Department of Electrical Engineering,Tsinghua University Beijing 100084);Blind SNR Estimation for arbitrary linear,modulated signals[A];[C];2009
【Secondary Citations】
Chinese Journal Full-text Database 5 Hits
1 FAN Hai-bo,CHEN Jun,CAO Zhi-gang(Dept. of Electronic Engineering, Tsinghua University, Beijing 100084, china);An Algorithm of SNR Estimation for Non-Constant Envelope Signal in the AWGN Channel[J];Acta Electronica Sinica;2002-09
2 Xu Hua Zheng Hui (The Key Laboratory of Southwest Inst. of Electron. & Telecom. Tech., Chengdu 610041, China);On the Maximum-Likelihood SNR Estimation Algorithm for MPSK Signals[J];Journal of Electronics and Information Technology;2005-04
3 Gu Xuemai,Wu Dan(Communication Research Center,Harbin Institute of Technology,Harbin,150001,China);Signal to Noise Ratio Algorithm Based on CIC[J];Journal of Nanjing University of Aeronautics & Astronautics;2007-03
4 ZHAN Yafeng, CAO Zhigang, MA Zhengxin Department of Electronic Engineering, Tsinghua University, Beijing 100084, China);Blind SNR estimates in wireless digital communications[J];Journal of Tsinghua University(Science and Technology);2003-07
5 HUA Meng, ZHU Jin-kang, GONG Ming (PCN&SS Lab, USTC, Hefei 230027, China);Blind SNR estimation based on cyclostationarity[J];Journal on Communications;2006-09
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