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Coded overlapped code division multiplexing system with Turbo product structure被引量：1
《The Journal of China Universities of Posts and Telecommunications》2010年第2期25-29,共5页ZHOU Su-hua FANG Li LI Dao-ben 
supported by the National Natural Science Foundation of China (90604035)
Coded overlapped code division multiplexing system with Turbo product structure （TPC-OVCDM） is introduced, and trellis coded modulation （TCM） code is employed as error correcting code for uncoded overlapped code d...
关键词：overlapped code division multiplexing trellis coded modulation TPC-OVCDM iterative decoding 
Digital Watermarking Applied To MEPG-2 Coded Video Sequences Exploiting Motion Vector被引量：6
《The Journal of China Universities of Posts and Telecommunications》2004年第2期35-39,共5页DAIYuan-jun ZHANGLi-he YANGYi-xian 
Thisworkwassupportedbythe 973NationalBasicResearchProgramofChinaandtheNationalNaturalScienceFoundationofChina.underresearchgrantnumbers1 9990 3580 4and 90 2 0 4 0 1 7
This paper proposes a video watermarking technology to hide copyright information by a slight modification of the motion vector in MPEG-2 video bitstream. In this method, the watermark is embedded in the motion residu...
关键词：video watermark MPEG motion vector multimedia security 
Design and Analysis of a Coded Multi-Carrier CDMA System
《The Journal of China Universities of Posts and Telecommunications》2001年第3期57-61,共5页ZHENGBao-yu FANGJian 
ThisworkissupportedbyGuangdongNatureScienceFoundation (2 0 0 0 1 641 ) .
The multi-carrier code division multiple access (MC-CDMA) system is extended to the coded MC-CDMA system. This system combine the channel error correcting coding (ECC) with MC-CDMA systems, thus sufficiently exploitin...
关键词：frequency division multiplexing code division multiple access error-correcting coding 
A Quadrature Coded OFDM for Reducing Effects of Frequency Offset in Wireless Transmission System被引量：7
《The Journal of China Universities of Posts and Telecommunications》2001年第2期11-15,共5页TONGXue-jian JIHong 等 
ThisworkissupportedbyNationalNaturalScienceFund!(No.69872 0 0 8)
A new quadrature coded OFDM system is proposed. The transmitted data symbols are grouped in such format that the in phase side and the quadrature side of the symbols are arranged in opposite order. By analysis an...
关键词：orthogonal   frequency division multiplexing(  OFDM  ) frequency offset interchannel interference(  ICI  ) equal gain combination(  EGC  ) 
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