摘要
用计算机模拟的方法研究了用于电缆的数字视频广播 ( DVB- C)系统的各模块功能 .分析了数字视频信号MPEG2的帧结构、信道编译码方法、交织与解交织及 64 QAM调制与解调等关键技术 .还把计算机模拟的结果与实验系统的结果作了比较 ,实测结果表明 ,实验系统的性能达到了较理想的水平 .
DVB- C system performance has been studied by computer simulation.The MPEG2 frame structure,error correcting encoding and decoding,interleave and deinterleave,and64 QAM modem are analyzed in detail. Itis concluded thatthe performance of the experiment system achieves a fairly ideal level by comparing with the results of the computer simulation.
出处
《上海大学学报（自然科学版）》
CAS
CSCD
2000年第1期5-10,共6页
Journal of Shanghai University:Natural Science Edition
基金
国家 8 6 3高技术资助课题! ( 86 3 -3 17-96 0 4-0 2 )
关键词
电缆数字视频广播
计算机模拟
纠错编译码
实验
DVB- C
computer simulation
error correcting encoding and decoding
interleave and deinterleave
64 QAM modem
