深空探测学报（中英文）2025，Vol.12Issue(4)：336-346,11.DOI:10.3724/j.issn.2096-9287.2025.20250115
基于"鹊桥"通导遥星座系统的地月中继协作传输方案
Cislunar Relay-Coordinated Transmission Scheme Based on Queqiao Communication,Navigation,and Remote Sensing Constellation System
摘要
Abstract
A cislunar relay cooperative transmission scheme was proposed based on the Queqiao communication,naviga-tion,and remote sensing satellite constellation system.To address unreliable data transmission in ultra-long-distance cislunar communication environments caused by highly dynamic channels and significant path loss,using the in-orbit information pro-cessing and multi-source data fusion capabilities of Queqiao communication,navigation and remote sensing satellite constella-tion system.By introducing a symbol-level forwarding strategy and a multi-source redundancy sharing mechanism,a distributed RaptorQ transmission mechanism for heterogeneous data fusion was designed,enhancing the reliability of image data transmis-sion.By adopting a block-based cyclic decoding algorithm,the computational complexity was reduced by 40%compared to the standard Gaussian elimination decoding algorithm,while still ensuring strong error correction performance.Simulation results demonstrate that in typical cislunar space communication scenarios,compared to traditional RS coding,the proposed distributed RaptorQ scheme achieved a 2 dB coding gain under equivalent coding redundancy.Compared to conventional relay storage-and-forward schemes,this approach increased decoding success rate by 20%,thereby improving image PSNR by over 5 dB,en-abling highly reliable transmission of multi-source image data in cislunar space.关键词
"鹊桥"通导遥星座系统/地月中继通信/RaptorQ编码/图像传输/峰值信噪比Key words
Queqiao communication,navigation,and remote sensing constellation system/cislunar relay communication/RaptorQ code/image transmission/PSNR分类
信息技术与安全科学引用本文复制引用
吴耀南,顾术实,张钦宇,何熊文,陈朝基..基于"鹊桥"通导遥星座系统的地月中继协作传输方案[J].深空探测学报（中英文）,2025,12(4):336-346,11.基金项目
民用航天技术预先研究项目(D040102) （D040102）
国家自然科学基金(62271165,62027802) （62271165,62027802）
广东省基础与应用基础研究基金(2023A1515030297) （2023A1515030297）
