北斗系統(tǒng)GEO-3衛(wèi)星臨退役期B1信號質(zhì)量研究

石慧慧; 王萌; 饒永南; 盧曉春; 王雪

doi:10.11999/JEIT190383

北斗系統(tǒng)GEO-3衛(wèi)星臨退役期B1信號質(zhì)量研究

doi: 10.11999/JEIT190383 cstr: 32379.14.JEIT190383

石慧慧^{1, 2, 3, ,},
王萌^{1, 2, 3},
饒永南^{1, 2},
盧曉春^{1, 2, 4},
王雪^{1, 2, 3}

1.
中國科學(xué)院國家授時中心西安 710600
2.
中國科學(xué)院精密導(dǎo)航定位與定時技術(shù)重點實驗室西安 710600
3.
中國科學(xué)院大學(xué)電子電氣與通信工程學(xué)院北京 101408
4.
中國科學(xué)院大學(xué)天文與空間科學(xué)學(xué)院北京 101408

基金項目: 國家重大專項(GFZX0306ZXWX004HT01)

詳細(xì)信息

作者簡介:
石慧慧：女，1987年生，助理研究員，主要從事GNSS導(dǎo)航信號分析處理及信號質(zhì)量監(jiān)測評估等方面的工作

王萌：女，1993年生，博士生，研究方向為GNSS信號質(zhì)量評估及通道預(yù)失真研究

饒永南：男，1982年生，副研究員，碩士生導(dǎo)師，主要從事衛(wèi)星導(dǎo)航信號接收系統(tǒng)測試、信號分析處理等方面的工作

盧曉春：女，1970年生，研究員，主要從事衛(wèi)星導(dǎo)航定位系統(tǒng)設(shè)計和建設(shè)工作

王雪：男，1979年生，研究員，主要從事衛(wèi)星導(dǎo)航信號體制驗證、信號分析處理及信號質(zhì)量評估等方面的工作

通訊作者:
石慧慧　shihuihui@ntsc.ac.cn

中圖分類號: TN911.6; TN927.2
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- 被引次數(shù): 0
出版歷程
- 收稿日期: 2019-05-28
- 修回日期: 2019-09-19
- 網(wǎng)絡(luò)出版日期: 2020-01-21
- 刊出日期: 2020-07-23

Researches on Pro-retirement Signal Quality of BeiDou Navigation Satellite System GEO-3 Satellite B1 Signal

Huihui SHI^{1, 2, 3
, ,},
Meng WANG^{1, 2, 3},
Yongnan RAO^{1, 2},
Xiaochun LU^{1, 2, 4},
Xue WANG^{1, 2, 3}

1.
National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, China
2.
Key Laboratory of Precision Navigation, Positioning and Timing Technology, Chinese Academy of Sciences, Xi’an 710600, China
3.
School of Electronic and Communication Engineering, University of Chinese Academy of Sciences, Beijing 101408, China
4.
School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 101408, China

Funds: The National Key Projects of China (GFZX0306ZXWX004HT01)

摘要

摘要:
北斗2號系統(tǒng)于2012年正式向亞太地區(qū)提供服務(wù)，其中GEO-3衛(wèi)星已退役，由GEO-7衛(wèi)星替代。研究衛(wèi)星臨退役期間的信號質(zhì)量特性不僅能夠分析北斗2號系統(tǒng)衛(wèi)星載荷狀態(tài)，而且為其它臨退役星的信號特性估計提供重要的參考價值，同時對北斗3號系統(tǒng)GEO衛(wèi)星載荷信號質(zhì)量控制與優(yōu)化具有重要的借鑒意義。該文利用昊平觀測站40 m大口徑天線的多源多手段數(shù)據(jù)，分析了GEO-3衛(wèi)星B1民用信號的功率譜、地面接收功率、S曲線過零點偏差(SCB)的長期變化趨勢，給出了相應(yīng)的統(tǒng)計結(jié)果，提出了針對衛(wèi)星載荷信號質(zhì)量優(yōu)化的相關(guān)建議,也對超期服役衛(wèi)星的決策提供了參考。
- 北斗衛(wèi)星導(dǎo)航系統(tǒng) /
- 臨退役衛(wèi)星 /
- 地面接收功率 /
- S曲線過零點偏差
Abstract:
The BDS-2 (BeiDou-2 System) officially provided services to the Asia-Pacific region in 2012. The GEO-3 satellite has been retired and replaced by the GEO-7 satellite. Studying the signal quality characteristics of the satellite during the pro-retirement period can not only analyze the satellite payload status of the BDS-2, but also provide important reference value for other signal characteristics of the pro-retirement satellite. At the same time, it has important enlightenment and reference significance for the signal quality controlling and optimizing of the GEO satellite load of the BDS-3. Using the multi-method monitoring data of the 40 m large-diameter antenna of the Hao-ping Radio Observatory(HRO), the power spectrum, the ground receiving power and S-Curve Bias (SCB) of the GEO-3 satellite B1 civil signal are analyzed. The long-term trend of these characteristics is given, and the corresponding statistical results are given. Relevant suggestions for satellite payload signal quality optimization are proposed.
- BeiDou navigation satellite System(BDS) /
- Pro-retirement satellite /
- Ground receiving power /
- S-Curve Bias (SCB)

HTML全文

圖 1 數(shù)字畸變信號與理想信號之間的對比圖

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圖 2 模擬畸變信號與理想信號之間的對比圖

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圖 3 載波泄漏下的功率譜頻率

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圖 4 2018年1月至6月GEO-3衛(wèi)星B1頻點功率譜

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圖 5 2018年6月25日GEO-3衛(wèi)星B1頻點地面接收功率曲線

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圖 6 2018年1月至6月GEO-3衛(wèi)星B1頻點地面接收功率均值變化趨勢

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圖 7 2018年1月至6月GEO-3衛(wèi)星B1I信號SCB分析

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圖 8 2018年1月至6月GEO-3衛(wèi)星B1I信號典型碼片處SCB數(shù)值

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