中国空间科学技术（中英文）2025，Vol.45Issue(3)：41-55,15.DOI:10.16708/j.cnki.1000-758X.2025.0037
鹊桥二号中继通信载荷任务分析与设计
Mission analysis and design of Queqiao-2 communication relay payload
徐进 1王永塔 1王秋平 1李耀 1孙骥 2陈岚 1余晓川 1汪海 1田森 1党晓康1
作者信息
- 1. 西安空间无线电技术研究所,西安 710100
- 2. 中国空间技术研究院,北京 100094
- 折叠
摘要
Abstract
The Queqiao-2 relay satellite supports the fourth phase of China's lunar exploration mission to land probes on the Moon.Its primary function is to facilitate communication between lunar surface exploration missions(Chang'e-6,Chang'e-7 and Chang'e-8,etc.)and ground stations,particularly for missions to the Moon's far side and polar regions.The relay communication payload is one of the most critical and core components of Queqiao-2 relay satellite.The mission features,design and key technologies of Queqiao-2 communication relay payload are analyzed and introduced.A full digital modulation and demodulation function is developed for the forward and return links,considering factors like communication techniques,long-distance transmission,compatibility with multiple lunar probes,and engineering feasibility.This,combined with the ability to update software in orbit,makes the communication relay payload highly flexible and innovative.A key challenge is detecting and tracking multiple targets from high-dynamic signals of the return link.This is addressed by creating a dedicated algorithm to ensure stable communication.Since its launch in March 2024,the communication payload has been operating well in orbit with high reliability,which establishes a leading role in system technical performance around the world.It has provided stable and reliable relay communication for the Chang'e-6 lunar probe for sampling and return mission,successfully completing the world's first lunar sample return mission from the far side of the Moon.The Queqiao-2 relay satellite's communication payload has played a significant role in China's deep space exploration,generating substantial economic and social benefits.It has laid a solid foundation for future deep space exploration,human spaceflight programs,lunar exploration projects and international cooperation.关键词
鹊桥二号/中继通信载荷/任务分析/方案设计/软件无线电/目标信号检测及跟踪/设计验证Key words
Queqiao-2/relay communication payload/mission analysis/system design/software defined radio/large dynamic multi-target signal detection and tracking/design verification分类
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徐进,王永塔,王秋平,李耀,孙骥,陈岚,余晓川,汪海,田森,党晓康..鹊桥二号中继通信载荷任务分析与设计[J].中国空间科学技术（中英文）,2025,45(3):41-55,15.
