| 载人航天空空通信子系统及其关键技术 |
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| 引用本文： | 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. |
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| 作者姓名： | 石云墀 |
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| 作者单位： | 上海航天电子技术研究所,上海,201109 |
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| 摘 要： | 介绍了实现神舟运输飞船与天宫目标飞行器间数据通信和传输的空空通信子系统的构成，以及空空通信机的功能及其主要性能指标。空空通信子系统采用抗干扰能力强、保密性优的直接序列扩频通信技术。分析了其中的核心中频解扩解调中的伪码同步和载波同步等关键技术，应用数字解调方案降低了子系统调试难度，提高了可靠性。
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| 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 |
Space to Space Communication Subsystem Manned Spaceflight and Its Key Technology |
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| SHI Yun-chi.Space to Space Communication Subsystem Manned Spaceflight and Its Key Technology[J].Aerospace Shanghai,2011,28(6):38-42. |
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| Authors: | SHI Yun-chi |
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| Institution: | SHI Yun-chi(Shanghai Institute of Aerospace Electronic Technology,Shanghai 201109,China) |
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| 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 function 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 ... |
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| Keywords: | Space to space communication DS/SS Digital demodulation of DS/SS signal Sequence synchronization Carrier synchronization |
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