NSSC OpenIR  > 空间技术部
优化卫星数传链路效率的VCM流程设计
Alternative TitleDesign of a VCM-based satellite data transmission architecture for down-link efficiency enhancement
李炯卉; 熊蔚明; 梅凡; Li, Jionghui (jionghui@nssc.ac.cn)
Department空间技术部
Source Publication哈尔滨工业大学学报
2016
Volume48Issue:10Pages:162-167
ISSN0367-6234
Language中文
Keyword可变编码调制 卫星数据传输 链路有效性 数传吞吐量 链路预算 流程设计
Abstract为提高探测卫星数据传输链路的传输效能,采用可变编码调制体制(VCM),在不增加卫星与地面站能量消耗和设备成本的条件下,降低链路资源浪费,优化星-地数据传输的吞吐量.在卫星VCM数传体制的基础上,分析了近地轨道卫星数传链路的动态链路预算,并详细讨论了链路传输效能的数学模型,给出了一种在有效数传时间内优化数传吞吐量的VCM流程设计算法.结果表明:该算法对于预知轨道的卫星系统,根据其动态的星-地链路预算结果,在保证误码率要求的前提下,选用不同的编码调制方式,从而拟合链路预算曲线,保持较为固定的链路余量,实现链路效率的优化;根据所述流程算法,针对一颗近地太阳同步轨道卫星设计VCM数传系统.通过数值仿真,与传统固定编码调制设计对比,说明这种VCM设计在提高链路有效性方面的突出优势.
Other AbstractThe dynamic link budget of low earth orbit (LEO) satellite data transmission link is analyzed, and the mathematical model of link efficiency is discussed. In order to enhance the data transmission link performance for exploration satellites, Variable Coding Modulation (VCM) system is applied to reduce link resource waste and improve the satellite-ground transmission throughput without increasing power consumption and design cost. A VCM schedule designing algorithm is illustrated for optimizing link throughput within the data transmission period. For a satellite system with foreseeable orbit and based on its dynamic link budget results, the proposed algorithm selects variable coding modulation combination under the bit error rate requirement to fit the link budget curve and keep a relatively constant link margin to achieve optimal link efficiency. Finally, on the basis of the proposed algorithm, a VCM data transmission system is designed for a LEO sun-synchronous satellite. According to the simulation results, the remarkable advantage of the proposed method is proved by comparison with traditional constant coding modulation design. © 2016, Editorial Board of Journal of Harbin Institute of Technology. All right reserved.
Indexed ByEI ; CSCD
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5640
Collection空间技术部
Corresponding AuthorLi, Jionghui (jionghui@nssc.ac.cn)
Recommended Citation
GB/T 7714
李炯卉,熊蔚明,梅凡,等. 优化卫星数传链路效率的VCM流程设计[J]. 哈尔滨工业大学学报,2016,48(10):162-167.
APA 李炯卉,熊蔚明,梅凡,&Li, Jionghui .(2016).优化卫星数传链路效率的VCM流程设计.哈尔滨工业大学学报,48(10),162-167.
MLA 李炯卉,et al."优化卫星数传链路效率的VCM流程设计".哈尔滨工业大学学报 48.10(2016):162-167.
Files in This Item:
File Name/Size DocType Version Access License
201648162-167.pdf(1031KB)期刊论文作者接受稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[李炯卉]'s Articles
[熊蔚明]'s Articles
[梅凡]'s Articles
Baidu academic
Similar articles in Baidu academic
[李炯卉]'s Articles
[熊蔚明]'s Articles
[梅凡]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[李炯卉]'s Articles
[熊蔚明]'s Articles
[梅凡]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.