基于协作的大规模NGSO星座间频率兼容共存研究

doi:10.13190/j.jbupt.2020-189

北京邮电大学学报 ›› 2020, Vol. 43 ›› Issue (6): 110-117.doi: 10.13190/j.jbupt.2020-189

基于协作的大规模NGSO星座间频率兼容共存研究

李伟, 潘冀, 严康, 魏文康, 张磊

国家无线电监测中心, 北京 100037

收稿日期:2020-10-04 出版日期:2020-12-28 发布日期:2020-11-30
通讯作者: 潘冀(1963-),女,正高级工程师,E-mail:panji@srrc.org.cn. E-mail:panji@srrc.org.cn
作者简介:李伟(1984-),男,高级工程师
基金资助:
国家自然科学基金项目（91738101）；国家重点研发计划项目（2020YFB1806100）

Research on Frequency Compatibility of Collaboration-Based Large-Scale NGSO Constellations

LI Wei, PAN Ji, YAN Kang, WEI Wen-kang, ZHANG Lei

The State Radio Monitoring Center, Beijing 100037, China

Received:2020-10-04 Online:2020-12-28 Published:2020-11-30

摘要/Abstract

摘要： 针对大规模非静止轨道（NGSO）通信星座系统间的同频干扰问题，在综合分析传统干扰评价指标的相互转换关系的基础上，建立了基于链路夹角的干扰分析模型，将通信干扰约束转化为几何构型约束.通过卫星选择和链路组合选择定义了系统可用性指标，基于此，开展了基于协作的大规模NGSO星座间频率兼容共存研究，并给出了协作模式下NGSO星座的工作方式.仿真中，选取OneWeb和Telesat系统实际工作参数，评估了全球范围内系统的可用性.结果表明，非协作模式下系统平均可用性为72.82%，在27.18%的时间内系统之间将产生严重干扰，而协作模式下系统平均可用性为96.00%，协作模式将大幅提升NGSO星座系统之间的频率兼容性.

关键词: 大规模非静止轨道通信星座, 干扰分析, 非协作/协作模式, 系统可用性, 频率兼容

Abstract: Aiming at the problem of co-frequency interference between large-scale non-geostationary orbit(NGSO)constellation systems, we established the interference analysis model of link angle to convert communication interference constraints into geometric configuration constraints based on the comprehensive analysis of the mutual conversion relationship of the traditional interference evaluation indicators. Furthermore, the system availability index is defined by satellite selection and link combination selection. On basis of this, we carry out some researches on frequency compatibility of collaboration-based large-scale NGSO constellations, in which the working mode of NGSO constellation in cooperation mode is given. In this simulation, the actual working parameters of OneWeb and Telesat systems are selected to evaluate the system availability on a global scale. The result illustrates that the average system availability in non-cooperative mode is 72.82% since the severe interference will occur between systems in 27.18% of the time, while the average system availability in cooperative mode is 96.00%, which means cooperation mode will greatly improve the compatibility of NGSO communication constellation systems.

Key words: large-scale non-geostationary orbit communication constellations, interference analysis, non-cooperative/cooperative mode, system availability, frequency compatibility

中图分类号:

TN927

李伟, 潘冀, 严康, 魏文康, 张磊. 基于协作的大规模NGSO星座间频率兼容共存研究[J]. 北京邮电大学学报, 2020, 43(6): 110-117.

LI Wei, PAN Ji, YAN Kang, WEI Wen-kang, ZHANG Lei. Research on Frequency Compatibility of Collaboration-Based Large-Scale NGSO Constellations[J]. Journal of Beijing University of Posts and Telecommunications, 2020, 43(6): 110-117.

参考文献

[1] Portillo I, Cameron B G, Crawley E F. Ground segment architectures for large LEO constellations with feeder links in EHF-bands[C]//IEEE Aerospace Conference. Big Sky:IEEE Press, 2018:1-14.
[2] Portillo I, Cameron B G, Crawley E F. A technical comparison of three low earth orbit satellite constellation systems to provide global broadband[J]. Acta Astronautica, 2019, 159:123-135.
[3] Park C S, Kang C G, Choi Y S, et al. Interference analysis of geostationary satellite networks in the presence of moving non-geostationary satellites[C]//Proceedings of the 2010 2nd International Conference on Information Technology Convergence and Services. Cebu:IEEE Press, 2010:1-5.
[4] Sharma S K, Chatzinotas S, Ottersten B. In-line interference mitigation techniques for spectral coexistence of GEO and NGEO satellites[J]. International Journal of Satellite Communications and Networking, 2016, 34(1):11-39.
[5] Wang Huiwen, Wang Cheng, Yuan Jun, et al. Coexistence downlink interference analysis between LEO system and GEO system in Ka band[C]//IEEE International Conference on Communications. Beijing:IEEE Press, 2018:465-469.
[6] Pourmoghadas A, Sharma S K, Chatzinotas S, et al. On the spectral coexistence of GSO and NGSO FSS systems:power control mechanisms and a methodology for inter-site distance determination[J]. International Journal of Satellite Communications and Networking, 2016, 35(5):443-459.
[7] Wang Yunfeng, Ding Xiaojin, Zhang Genxin. A novel dynamic spectrum-sharing method for GEO and LEO satellite networks[J]. IEEE Access, 2020, 8:147895-147906.
[8] Wang Chuang, Bian Dongming, Shi Shengchao, et al. A novel cognitive satellite network with GEO and LEO broadband systems in the downlink case[J]. IEEE Access, 2018(6):25987-26000.
[9] Panagopoulos A D, Arapoglou P M, Chatzarakis G E, et al. Coexistence of the broadcasting satellite service with fixed service systems in frequency bands above 10 GHz[J]. IEEE Transactions on Broadcasting, 2006, 52(1):100-107.
[10] Federal Communication Commission. Electronic code of federal regulations CFR 25.261:sharing among NGSO FSS space stations[DB/OL]. (2017-09-27)[2020-05-20]. https://www.fcc.gov/about/overview.
[11] Hanson Ward A. In their own words OneWeb's internet constellation as described in their FCC form 312 application[J]. NEW SPACE, 2016, 4(3):143-167.
[12] Zhang Chi, Jin Jin, Kuang Linling, et al. Blind spot of spectrum awareness techniques in non-geostationary satellite systems[J]. IEEE Transactions on Aerospace and Electronic Systems, 2018, 54(6):3150-3159.
[13] 靳瑾, 李娅强, 张晨, 等. 全球动态场景下非静止轨道通信星座干扰发生概率和系统可用性[J]. 清华大学学报(自然科学版), 2018, 58(9):833-840. Jin Jin, Li Yaqiang, Zhang Chen, et al. Occurrence probability of co-frequency interference and system availability of non-geostationary satellite system in global dynamic scene[J]. Journal of Tsinghua University(Science and Technology), 2018, 58(9):833-840.
[14] ITU-R. Simulation methodologies for determining statistics of short-term interference between co-frequency, codirectional non-geostationary satellite orbit fixed-satellite service systems in circular orbits and other non-geostationary fixed-satellite service systems in circular orbits or geostationary-satellite orbit fixed-satellite service networks:ITU-R S. 1325-2004[S]. Geneva:ITU, 2004:2-21.
[15] ITU-R. Methods to enhance sharing between non-GSO FSS systems(except MSS feeder links)in the frequency bands between 10-30 GHz:ITU-R S. 1431-2000[S]. Geneva:ITU, 2000:1-4.
[16] ITU. Coordination of the L5 satellite network in IFIC2809[DB/OL]. (2015-08-12)[2020-07-14]. https://www.itu.int/sns/converted-to-v8/ific2809.zip.
[17] ITU. Coordination of the CANSAT-LEO satellite network in IFIC2850[DB/OL]. (2017-07-25)[2020-07-14]. https://www.itu.int/sns/ific8/ific2850.zip.

基于协作的大规模NGSO星座间频率兼容共存研究

Research on Frequency Compatibility of Collaboration-Based Large-Scale NGSO Constellations

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