摘要
本文论述了BS-2a卫星直播电视数字伴音接收机原理,介绍了该机的准瞬时压扩PCM-4DPSK多路复用体制以及准瞬时压扩、纠错编码、码位交织、扰码、插值、同步控制器以及载波恢复、位同步和帧同步的功能和实现。实地试收表明,该机工作稳定、性能良好。
The principle of a digital sound receiver for receiving TV signals from the DBS BS-2a is given. The NICPCM-4DPSK multi-plexing technique and the blocks of the receiver, including NICPCM, error-correcting and detecting coding, bit interleaving, scrambling, interpolation, synchrocontrol, carrier recovery bit synchronization and frame synchronization are briefly described. Field tests show that the operation of the system is stable and the performance is good.
出处
《华中理工大学学报》
CSCD
北大核心
1990年第4期89-94,共6页
Journal of Huazhong University of Science and Technology
关键词
电视
数字伴音
接收机
数字通信
Digital, sound receiver, DBS sound receiver, Digital communication
