优化卫星数传链路效率的VCM流程设计
Design of a VCM-based satellite data transmission architecture for down-link efficiency enhancement
查看参考文献15篇
|
文摘
|
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. |
|
其他语种文摘
|
The 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. |
|
来源
|
哈尔滨工业大学学报
,2016,48(10):162-167 【核心库】
|
|
DOI
|
10.11918/j.issn.0367-6234.2016.10.024
|
|
关键词
|
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
|
|
地址
|
中国科学院国家空间科学中心, 北京, 100190
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
0367-6234 |
|
学科
|
电子技术、通信技术 |
|
基金
|
中国科学院专项创新基金
|
|
文献收藏号
|
CSCD:5825779
|
参考文献 共
15
共1页
|
|
1.
Di Roberto R. Optical payloads for high-resolution earth imaging suitable for microsatellites.
Proceeding of the 15th International Conference on Environment and Electrical Engineering (EEEIC),2015
|
被引
1
次
|
|
|
|
|
2.
吴国强. 编队小卫星星间通信系统的发展和趋势.
哈尔滨工业大学学报,2007,39(11):1699-1703
|
被引
3
次
|
|
|
|
|
3.
Lan Shengchang. A taxonomy of energy efficiency strategies for cubesat cluster formation networks.
Proceeding of the 64th International Astronautical Congress (IAC),2013:11486-11493
|
被引
1
次
|
|
|
|
|
4.
Mccarthy K P. NASA's evolution to Ka -band space communications for near-earth spacecraft.
Proceedings of the Space Ops Conference,2010
|
被引
1
次
|
|
|
|
|
5.
Consultative Committee for Space Data Systems (CCSDS).
Blue Book: TM Synchronization and Channel Coding: CCSDS 131.0-B-2,2011:8
|
被引
1
次
|
|
|
|
|
6.
European Telecommunications Standards Institute (ETSI).
European Standard: Digital Video Broadcasting (DVB); Second Generation Framing Structure, Channel Coding and Modulation Systems for Broadcasting, Interactive Services, News Gathering and other Broadband Satellite Applications: ETSI EN 302 307 V1.2.1 (2009,2014:3
|
被引
1
次
|
|
|
|
|
7.
Consultative Committee for Space Data Systems (CCSDS).
Magenta Book: Variable Coded Modulation Protocol: CCSDS 131.5-M-1.1,2014:3
|
被引
1
次
|
|
|
|
|
8.
Hamkins J. Performance of Low-Density Parity-Check Coded Mod- ulation.
Proceeding of 2010 IEEE Aerospace Conference,2010
|
被引
1
次
|
|
|
|
|
9.
Mitchell D G M. New fami- lies of LDPC block codes formed by terminating irregular photo- graph-based LDPC convolutional codes.
Proceeding of the In- ternational Symposium on Information Theory (ISIT),2010
|
被引
1
次
|
|
|
|
|
10.
王秀妮.
基于LDPC码的编码调制技术研究,2013
|
被引
1
次
|
|
|
|
|
11.
雷菁. 非线性卫星信道中APSK信号星座优化设计研究.
武汉理工大学学报,2006,28(8):117-121
|
被引
1
次
|
|
|
|
|
12.
Guo Shuxiao. Research of MAPSK modulation based on the no-linear satellite channel.
Proceeding of the 3rd Broadband Network and Multimedia Technology,2010
|
被引
1
次
|
|
|
|
|
13.
Deng Yuance. Modulation recognition of MAPSK signals using template matching.
Electronics Letters,2014,50(25):1986-1988
|
被引
1
次
|
|
|
|
|
14.
Cossu M. Effects of link availability on the achievable performance with variable coding modulation earth observation satellites.
Proceedings of the 1st AESS European Conference on Satellite Telecommunications (ES- TEL),2012
|
被引
1
次
|
|
|
|
|
15.
张旭. 基于VCM的对地探测卫星数据传输体制分析.
电讯技术,2014,54(1):15-16
|
被引
1
次
|
|
|
|
|
了解气象卫星更多信息，请访问