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《Journal of Air Force Engineering University(Natural Science Edition)》 2001-01
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Study on phase ambiguity resolution of QPSK digital demodulation

GUO Xing yang, XIE De fang (The Telecommunication Engineering Institute, AFEU., Xi'an 710077, China)  
Based on the function of the synchronization status monitor of Q 1900, a new method for correcting output data status of all digital coherent QPSK demodulation is presented. The correcting capability of the quadriphase differential coding and decoding is also analysed in theory. The experiment results show that this method is of the complete performance which the quadriphase differential coding and decoding can not achieve.
【CateGory Index】: TN763
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【References】
Chinese Journal Full-text Database 2 Hits
1 CAO Hua-min, DU Shuan-yi, LI Xiao-feng (1.The Telecommunication Engineering Institute, Air Force Engineering University, Xi′an 710077, China;2.Institute of Communication Engineering, Xidian University,Xi′an,710071,China);Modulation and Demodulation Techniques Based on Copy Theory and Computer Simulation[J];Journal of Air Force Engineering University(Natural Science Edition);2002-05
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【Co-references】
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1 LUO Yun,LV You-xin,XIANG Jing-cheng(Department of Electronic Engineering, University of Electronic Science and Technology of China,Chengdu 610054,China);A Digital Down Converter Based on FPGA[J];Telecommunication Engineering;2004-03
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1 CHAN Xina,BIAN Yun-pengb (Heilongjiang University a.College of Information Science and Technology;b.College of Architecture Engineering,Harbin 150080,China);Decision Feedback Loop QPSK Signal Carrier Tracking Technology[J];Journal of Heilongjiang Hydraulic Engineering College;2007-01
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