上海航天2011，Vol.28Issue(6)：38-42,5.
载人航天空空通信子系统及其关键技术
Space to Space Communication Subsystem Manned Spaceflight and Its Key Technology
石云墀1
作者信息
- 1. 上海航天电子技术研究所,上海201109
- 折叠
摘要
Abstract
The composition of the space to space communication subsystem which would realize the transmit the data between Shenzhou spaceship and Tiangong target spacecraft and the functiofi and main performances of the space to space communicator were introduced in this paper. The DS/SS technology which could provide very good performance in anti-jamming and secret communication was applied in the space to space communication subsystem. And the key technologies of sequence synchronization and carrier synchronization in the demodulation of IF DS/SS signal which was the core in DS/SS were analyzed. Using the digital demodulation scheme would reduce the complexity of debugging and increase the reliability of the system.关键词
空空通信/直接序列扩频/数字解扩解调/伪码同步/载波同步Key words
Space to space communication/DS/SS/Digital demodulation of DS/SS signal/Sequence synchronization/Carrier synchronization分类
航空航天引用本文复制引用
石云墀..载人航天空空通信子系统及其关键技术[J].上海航天,2011,28(6):38-42,5.
