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北斗三号基本系统空间信号质量评估

宿晨庚 郭树人 刘旭楠 饶永南 王萌

宿晨庚, 郭树人, 刘旭楠, 饶永南, 王萌. 北斗三号基本系统空间信号质量评估[J]. 电子与信息学报, 2020, 42(11): 2689-2697. doi: 10.11999/JEIT190683
引用本文: 宿晨庚, 郭树人, 刘旭楠, 饶永南, 王萌. 北斗三号基本系统空间信号质量评估[J]. 电子与信息学报, 2020, 42(11): 2689-2697. doi: 10.11999/JEIT190683
Chengeng SU, Shuren GUO, Xunan LIU, Yongnan RAO, Meng WANG. Signal Quality Assessment of BDS-3 Preliminary System[J]. Journal of Electronics and Information Technology, 2020, 42(11): 2689-2697. doi: 10.11999/JEIT190683
Citation: Chengeng SU, Shuren GUO, Xunan LIU, Yongnan RAO, Meng WANG. Signal Quality Assessment of BDS-3 Preliminary System[J]. Journal of Electronics and Information Technology, 2020, 42(11): 2689-2697. doi: 10.11999/JEIT190683

北斗三号基本系统空间信号质量评估

doi: 10.11999/JEIT190683
详细信息
    作者简介:

    宿晨庚:男,1988年生,助理研究员,研究方向为卫星导航信号设计与试验评估

    郭树人:男,1972年生,研究员,研究方向为卫星导航总体设计

    刘旭楠:女,1988年生,助理研究员,研究方向为卫星导航与遥感应用

    饶永南:男,1983年生,副研究员,研究方向为卫星导航信号测试与评估

    王萌:女,1993年生,博士生,研究方向为导航信号质量评估算法研究

    通讯作者:

    宿晨庚 sucg@beidou.gov.cn

  • 中图分类号: TN967.1

Signal Quality Assessment of BDS-3 Preliminary System

  • 摘要: 全球卫星导航系统(GNSS)空间信号(SIS)质量直接影响了用户使用性能。北斗三号卫星不同于北斗二号卫星,将继续播发北斗二号老信号,同时新增播发B1C, B2a等新信号,多频多信号多分量的信号体制较北斗二号更为复杂,对导航卫星信号质量控制提出了较大挑战。2018年底北斗系统完成了18颗卫星组网,完成北斗三号基本系统建设并开始提供全球服务,有必要对北斗三号在轨卫星空间信号质量进行量化评估。传统空间信号质量评估方法侧重于单项的定性评估,而针对北斗三号复杂的信号体制,缺乏系统的、定量的分析结果。该文对标北斗系统接口控制文件(ICD),从功率特性、频域特性、时域特性、相关域特性和信号一致性等方面研究了不同参数配置对评估结果的影响,形成了一套面向新型调制方式和多频多分量复用信号的量化评估方法。基于40 m大口径天线的空间信号质量评估系统,对18颗MEO卫星进行了长时间监测跟踪和数据采集,首次对北斗三号卫星空间信号质量进行了全面量化评估。结果表明:北斗三号卫星空间信号质量良好,18颗MEO卫星一致性较好,符合ICD指标要求,可满足服务区内用户需求;评估方法可用于对后续导航卫星空间信号质量的量化评估。
  • 图  1  评估内容

    图  2  不同带宽滤波后的S曲线偏差变化

    图  3  QMBOC自相关函数

    图  4  QMBOC信号S曲线

    图  5  数字畸变分析示意图

    图  6  B1C信号功率谱

    图  7  B2a信号功率谱

    图  8  北斗三号卫星B1频段地面接收功率

    图  9  B1Cd S曲线过零点偏差

    图  10  B1Cp S曲线过零点偏差

    图  11  B1C时域波形图

    图  12  B2a时域波形图

    表  1  北斗三号MEO卫星已公开信号格式

    频带信号分量中心频率(MHz)调制方式
    B1B1I1561.098BPSK(2)
    B1C1575.42QMBOC(6, 1, 1/11)
    B2B2a1176.45QPSK(10)
    B3B3I1268.52BPSK(10)
    下载: 导出CSV

    表  2  合成功率谱偏差均值(dB)

    信号M1M2M3M4M5M6M7M8M9
    B1C–0.2607–0.2052–0.2055–0.1863–0.2502–0.1209–0.0700–0.0572–0.3877
    B2a0.25780.30460.39120.08860.41540.40340.23210.33590.2825
    信号M10M11M12M13M14M15M16M17M18
    B1C–0.2323–0.4660–0.1585–0.0055–0.1714–0.3182–0.1586–0.0923–0.1014
    B2a0.32290.46140.38180.43570.32220.23510.14080.29560.2135
    下载: 导出CSV

    表  3  地面接收功率电平(dBW)

    信号M1M2M3M4M5M6M7M8M9
    B1C–155.305–154.415–155.156–155.620–155.423–154.715–155.581–155.570–154.734
    B2a–151.629–151.563–151.872–153.208–152.554–151.776–152.154–152.317–151.440
    信号M10M11M12M13M14M15M16M17M18
    B1C–154.750–155.363–155.324–154.974–154.951–156.105–155.029–156.162–155.5577
    B2a–151.353–152.373–152.183–151.097–151.748–153.673–152.034–153.691–152.0471
    下载: 导出CSV

    表  4  地面接收功率统计值(dBW)

    信号B1CB2a
    均值–154.38–152.15
    标准差0.470.74
    下载: 导出CSV

    表  5  信号各支路功率比

    信号分量M1M2M3M4M5M6M7M8M9
    B1Cp/B1Cd2.7072.8382.7942.7012.7692.7962.7552.7312.660
    B2ap/B2ad0.9970.9980.9910.9980.9950.9940.9990.9991.000
    信号分量M10M11M12M13M14M15M16M17M18
    B1Cp/B1Cd2.6572.6042.6802.7332.8342.5662.7522.6972.918
    B2ap/B2ad0.9970.9991.0000.9940.9980.9970.9971.0001.002
    下载: 导出CSV

    表  6  相关损耗分析结果(dB)

    信号分量M1M2M3M4M5M6M7M8M9
    B1Cp–0.381–0.491–0.441–0.373–0.444–0.415–0.050–0.202–0.165
    B1Cd–0.051–0.159–0.097–0.025–0.071–0.1230.1410.0440.182
    B1C–0.296–0.405–0.352–0.283–0.348–0.340–0.001–0.139–0.076
    B2ad0.0560.0390.0210.0510.0550.0540.0600.0420.053
    B2ap0.0550.0390.0190.0510.0580.0550.0610.0470.055
    B2a0.0550.0390.0200.0510.1130.0560.060.0440.054
    信号分量M10M11M12M13M14M15M16M17M18
    B1Cp–0.203–0.345–0.306–0.444–0.555–0.317–0.251–0.241–0.095
    B1Cd0.1430.1150.0140.024–0.0300.205–0.0320.0300.204
    B1C–0.114–0.227–0.224–0.323–0.42–0.183–0.195–0.171–0.018
    B2ad0.0520.0230.0550.0560.0530.0600.0550.0320.038
    B2ap0.0530.0250.0560.0580.0510.0590.0560.0330.038
    B2a0.0520.0240.0550.0570.0520.0590.0550.0320.038
    下载: 导出CSV

    表  7  相关损耗统计结果(dB)

    信号分量B1CpB1CdB1CB2adB2apB2a
    均值–0.320.03–0.230.050.050.05
    标准差0.140.110.130.010.010.02
    下载: 导出CSV

    表  8  S曲线偏差分析结果(ns)

    信号分量B1CdB1CpaB1Cp1B1Cp2B2adB2ap
    M10.0050.0060.1640.1380.1580.167
    M20.1480.1320.1070.1420.0690.074
    M30.1170.0670.0190.0750.0970.128
    M40.0520.0070.0560.0210.0800.080
    M50.1110.0600.2730.1860.0760.174
    M60.0530.0120.0830.0970.0900.084
    M70.1400.1480.0730.0700.0780.075
    M80.0520.110.1220.1120.0290.024
    M90.0050.0620.1340.1000.1880.182
    M100.1260.1200.1380.0640.1280.049
    M110.1110.1680.0360.0290.0260.027
    M120.0530.0050.1380.1130.0440.134
    M130.0500.0460.2770.1830.1190.128
    M140.0960.0510.1640.0830.0650.075
    M150.1670.1560.1770.0920.1350.142
    M160.0370.0250.2690.1660.1510.143
    M170.0070.0660.2470.1640.1290.126
    M180.0730.0110.1480.1320.1030.088
    下载: 导出CSV

    表  9  S曲线偏差统计结果

    信号分量B1CdB1CpaB1Cp1B1Cp2B2adB2ap
    均值0.080.070.150.100.100.10
    标准差0.050.050.080.050.040.05
    下载: 导出CSV

    表  10  正/负码片与理想码片长度偏差均值和最大值(ns)

    信号
    分量
    B1CpB1CdB2apB2ad
    均值最大值均值最大值均值最大值均值最大值
    M10.1013.3810.1173.2770.0242.714–0.0272.576
    M20.0553.6120.0163.390–0.0132.607–0.0332.676
    M30.1923.4120.0122.7730.0313.276–0.0323.092
    M40.0853.5400.0542.9140.0062.301–0.0232.113
    M50.0483.3960.1413.568–0.0012.2820.0532.256
    M60.1073.3590.0452.8050.0322.3300.0582.416
    M70.0183.3990.0553.4920.0122.145–0.0692.116
    M80.0813.2840.0222.9270.0152.939–0.0353.096
    M90.1123.3940.2062.6680.0542.244–0.0082.367
    M100.1013.4350.1672.8010.0622.2460.0132.407
    M110.1643.4150.3003.3380.0612.448–0.0362.274
    M120.0553.5680.1392.5970.0692.467–0.0842.340
    M130.1593.4360.1093.2120.0212.255–0.0482.336
    M140.0183.3330.0112.7460.1282.6630.0412.415
    M150.1883.6720.0493.080–0.0412.7270.0272.795
    M160.0953.3310.0102.702–0.0362.6780.0022.680
    M170.1732.6810.0082.7830.0312.2920.0362.474
    M180.1693.5420.0752.8970.0552.4860.0852.273
    下载: 导出CSV

    表  11  信号一致性测试结果(ns)

    信号分量B1Cd-B1CpB2ad-B2ap
    均值标准差均值标准差
    M12.26×10–40.0769.9×10–60.013
    M26.90×10–50.0703.70×10–50.012
    M32.03×10–40.0796.74×10–50.015
    M43.14×10–40.0763.65×10–50.016
    M55.40×10–50.0711.43×10–70.014
    M62.09×10–40.0831.25×10–50.013
    M75.30×10–50.0891.82×10–60.013
    M81.16×10–40.0821.62×10–50.014
    M92.60×10–40.0989.06×10–50.013
    M105.20×10–50.0987.99×10–60.013
    M111.30×10–50.0858.59×10–50.013
    M128.20×10–50.0728.64×10–50.015
    M131.15×10–40.0815.67×10–50.012
    M141.37×10–40.0833.77×10–50.013
    M151.98×10–40.0987.98×10–50.018
    M167.70×10–50.0901.77×10–50.014
    M171.93×10–40.0763.67×10–60.013
    M184.08×10–40.0702.44×10–50.012
    下载: 导出CSV
  • HEGARTY C J and ROSS J T. Initial results on nominal GPS L5 signal quality[C]. The 23rd International Technical Meeting of the Satellite Division of the Institute of Navigation, Portland, USA, 2010.
    THOELERT S, ERKER S, MONTENBRUCK O, et al. GPS SVN49—L1 anomaly analysis based on measurements with a high gain antenna[C]. The 4th European Workshop on GNSS Signals and Signal, Oberpfaffenhofen, 2009.
    THOELERT S, ERKER S, MEURER M, et al. New signals in the SKY—a high gain antenna analysis of GPS IIF and COMPASS[C]. The 23rd International Technical Meeting of the Satellite Division of the Institute of Navigation, Portland, USA, 2010.
    SPELAT M, HOLLREISER M, CRISICI M, et al. GIOVE-a signal in space test activity at ESTEC[C]. The 19th International Technical Meeting of the Satellite Division of the Institute of Navigation, Fort Worth, 2006: 26–29.
    SOELLNER M, KURZHALS C, HECHENBLAIKNER G, et al. GNSS offline signal quality assessment[C]. International Technical Meeting of the Satellite Division of the Institute of Navigation, Savannah, USA, 2008: 909–920.
    卢晓春, 贺成艳, 王雪, 等. 卫星导航信号评估系统设计及信号性能评估[J]. 时间频率学报, 2016, 39(3): 225–246. doi: 10.13875/j.issn.1674-0637.2016-03-0225-22

    LU Xiaochun, HE Chengyan, WANG Xue, et al. Design of GNSS monitoring and assessment system and assessment of GNSS signal-in-space[J]. Journal of Time and Frequency, 2016, 39(3): 225–246. doi: 10.13875/j.issn.1674-0637.2016-03-0225-22
    欧阳晓风. 北斗导航系统信号质量分析与评估技术[D]. [硕士论文], 国防科学技术大学, 2013.

    OUYANG Xiaofeng. Evaluation technology and analysis of BDS signal quality[D]. [Master dissertation], National University of Defense Technology, 2013.
    卢晓春, 周鸿伟. GNSS空间信号质量分析方法研究[J]. 中国科学: 物理学力学天文学, 2010, 40(5): 528–533.

    LU Xiaochun and ZHOU Hongwei. Methods of analysis for GNSS signal quality[J]. Scientia Sinica (Physic,Mechanica &Astronomica), 2010, 40(5): 528–533.
    杨再秀, 郭晓峰, 杨丽云. GNSS信号质量关键指标测试方法研究[J]. 无线电工程, 2015, 45(6): 55–58.

    YANG Zaixiu, GUO Xiaofeng, and YANG Liyun. Measurement methods of GNSS signal quality key assessment indexes[J]. Radio Engineering, 2015, 45(6): 55–58.
    康立, 卢晓春, 王雪, 等. GPS L1频点授权信号质量评估[J]. 电子与信息学报, 2018, 40(4): 905–911. doi: 10.11999/JEIT170440

    KANG Li, LU Xiaochun, WANG Xue, et al. Authorized signals quality assessment on GPS L1[J]. Journal of Electronics &Information Technology, 2018, 40(4): 905–911. doi: 10.11999/JEIT170440
    康立, 卢晓春, 王雪, 等. 北斗系统信号时域波形失真评估[J]. 电子与信息学报, 2018, 40(4): 1002–1006. doi: 10.11999/JEIT170591

    KANG Li, LU Xiaochun, WANG Xue, et al. Navigation signal chip domain assessment on Beidou navigation system[J]. Journal of Electronics &Information Technology, 2018, 40(4): 1002–1006. doi: 10.11999/JEIT170591
    中国卫星导航系统管理办公室. 北斗卫星导航系统发展报告(3.0版)[EB/OL]. http://www.beidou.gov.cn, 2018.

    China Satellite Navigation System Management Office. Development of the BeiDou navigation satellite system (version 3.0)[EB/OL]. http://www.beidou.gov.cn, 2018.
    YANG Yuanxi, GAO Weiguang, GUO Shuren, et al. Introduction to BeiDou-3 navigation satellite system[J]. Navigation, 2019, 66(1): 7–18. doi: 10.1002/navi.291
    中国卫星导航系统管理办公室. 北斗卫星导航系统空间信号接口控制文件公开服务信号B1C(1.0版)[EB/OL]. http://www.beidou.gov.cn, 2017.

    China Satellite Navigation System Management Office. BeiDou navigation satellite system signal in space interface control document open service signal B1C (version 1.0)[EB/OL]. http://www.beidou.gov.cn, 2017.
    中国卫星导航系统管理办公室. 北斗卫星导航系统空间信号接口控制文件公开服务信号B2a(1.0版)[EB/OL]. http://www.beidou.gov.cn, 2017.

    China Satellite Navigation System Management Office. BeiDou navigation satellite system signal in space interface control document open service signal B2a (version 1.0)[EB/OL]. http://www.beidou.gov.cn, 2017.
    贺成艳, 郭际, 卢晓春, 等. 北斗卫星导航系统B1信号伪距偏差问题研究[J]. 电子与信息学报, 2018, 40(11): 2698–2704. doi: 10.11999/JEIT180074

    HE Chengyan, GUO Ji, LU Xiaochun, et al. Researches on pseudo-range biases of Beidou navigation satellite system B1 signals[J]. Journal of Electronics &Information Technology, 2018, 40(11): 2698–2704. doi: 10.11999/JEIT180074
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出版历程
  • 收稿日期:  2019-09-04
  • 修回日期:  2020-03-31
  • 网络出版日期:  2020-05-12
  • 刊出日期:  2020-11-16

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