地基北斗GEO卫星直反信号功率测量偏差分析

阮宏梁; 洪学宝; 王永宁; 汉牟田; 杨东凯

doi:10.13700/j.bh.1001-5965.2022.0080

地基北斗GEO卫星直反信号功率测量偏差分析

doi: 10.13700/j.bh.1001-5965.2022.0080

1.
金华职业技术学院商学院，金华 321017
2.
北京航空航天大学前沿科学技术创新研究院，北京 100191
3.
中国联合网络通信有限公司金华市分公司，金华 321017
4.
北京航空航天大学电子信息工程学院，北京 100191

基金项目: 浙江省基础公益研究计划(LGN19D040001)

详细信息

通讯作者:
E-mail：Joyce_hong2008@yeah.net

中图分类号: V19；P237
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出版历程
- 收稿日期: 2022-02-18
- 录用日期: 2022-09-18
- 网络出版日期: 2022-11-08
- 整期出版日期: 2023-04-30

Power measurement deviations of direct and reflected signals from BDS GEO satellites in ground-based GNSS-R applications

1.
Business School，Jinhua Polytechnic，Jinhua 321017，China
2.
Research Institute for Frontier Science，Beihang University，Beijing 100191，China
3.
Jinhua Branch，China United Network Communication Co.，Ltd.，Jinhua 321017，China
4.
School of Electronics and Information Engineering，Beihang University，Beijing 100191，China

Funds: Zhejiang Basic Public Welfare Research Project (LGN19D040001)

More Information

Corresponding author: E-mail：Joyce_hong2008@yeah.net

摘要

摘要:
针对接收天线方向性造成的北斗地球同步轨道（GEO）卫星直反信号功率测量偏差进行研究。给出地基场景下实际天线接收的直反信号及其功率表达式，讨论天线方向性造成的北斗GEO卫星直反信号功率测量相对偏差，设置具体观测场景进行仿真分析。理论与仿真结果表明：具体场景和时刻下的北斗GEO卫星直反信号功率测量偏差为固定偏差，由天线对干扰信号的抑制性能、天线架设高度和反射面介电常数共同决定；相对偏差的大小随着天线对干扰信号抑制性能的增强而减小，随着天线架设高度的变化在某一范围内波动，也会随着反射面介电常数的变化而变化。
- 全球导航卫星反射信号测量技术 /
- 北斗卫星导航系统 /
- 地球同步轨道卫星 /
- 功率测量偏差 /
- 天线方向性
Abstract:
This paper analyzes the power measurement deviations of the direct and reflected signals from BDS GEO satellites. Firstly, the expressions of direct and reflected BDS GEO signals received by actual antennas in ground-based scenario are presented. Then, the relative deviations of direct and reflected signal power measurement of BDS GEO satellite are discussed. Finally, simulations were carried out to analyze relative deviations in a specific observation scenario. Both theory and simulation show that the power measurement deviation of the direct and reflected BDS GEO signals are fixed under a specific scene and at a given time. The deviations are codetermined by the suppression performance of the antenna to the interference signals, antenna height and the dielectric constant of the reflector. The relative deviation decreases with the enhancement of the suppression performance of the antenna to the interference signal, fluctuates within a certain range with the change of the antenna height, and varies with the dielectric constant of the reflector.
- global navigation satellite system reflectometry /
- BeiDou navigation satellite system /
- geostationary earth orbit satellites /
- power measurement deviations /
- antenna directivity

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图 1 不同高度角下的天线抑制比

Figure 1. Antenna rejection ratios under different elevation angle

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图 2 不同卫星高度角和天线相位中心高度下的直反信号功率测量相对偏差情况

Figure 2. Relative deviations of direct and reflected signals power measurements under different elevation angle and antenna height

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图 3 不同卫星高度角和反射面介电常数下的直射信号功率测量偏置偏差和最大余弦偏差情况

Figure 3. Offset deviations and maximum-cosine deviations of direct signal power measurements under different elevation angle and antenna height

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图 4 不同卫星高度角和反射面介电常数下的反射信号功率测量偏置偏差和最大余弦偏差情况

Figure 4. Offset deviations and maximum-cosine deviations of reflected signal power measurements under different elevation angle and antenna height conditions

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参考文献(18)

[1]	刘经南, 邵连军, 张训械. GNSS-R研究进展及其关键技术[J]. 武汉大学学报:信息科学版, 2007, 32(11): 955-960. LIU J N, SHAO L J, ZHANG X X. Advances in GNSS-R studies and key technologies[J]. Geomatics and Information Science of Wuhan University, 2007, 32(11): 955-960(in Chinese).
[2]	万玮, 陈秀万, 彭学峰, 等. GNSS遥感研究与应用进展和展望[J]. 遥感学报, 2016, 20(5): 858-874. WAN W, CHEN X W, PENG X F, et al. Overview and outlook of GNSS remote sensing technology and applications[J]. Journal of Remote Sensing, 2016, 20(5): 858-874(in Chinese).
[3]	金双根, 张勤耘, 钱晓东. 全球导航卫星系统反射测量(GNSS+R)最新进展与应用前景[J]. 测绘学报, 2017, 46(10): 1389-1398. doi: 10.11947/j.AGCS.2017.20170282 JIN S G, ZHANG Q Y, QIAN X D. New progress and application prospects of global navigation satellite system reflectometry (GNSS+R)[J]. Acta Geodaetica et Cartographica Sinica, 2017, 46(10): 1389-1398(in Chinese). doi: 10.11947/j.AGCS.2017.20170282
[4]	YANG T, WAN W, CHEN X W, et al. Using BDS SNR observations to measure near-surface soil moisture fluctuations: Results from low vegetated surface[J]. IEEE Geoscience and Remote Sensing Letters, 2017, 14(8): 1308-1312. doi: 10.1109/LGRS.2017.2710083
[5]	GAO C Q, YANG D K, HONG X B, et al. Performance analysis of ground target detection utilizing Beidou satellite reflected signals[J]. Sensors, 2019, 19(9): 2163. doi: 10.3390/s19092163
[6]	ZHANG Y, HANG S J, HAN Y L, et al. Sea ice thickness detection using coastal BeiDou reflection setup in Bohai Bay[J]. IEEE Geoscience and Remote Sensing Letters, 2021, 18(3): 381-385. doi: 10.1109/LGRS.2020.2980106
[7]	邹文博, 张波, 洪学宝, 等. 利用北斗GEO卫星反射信号反演土壤湿度[J]. 测绘学报, 2016, 45(2): 199-204. doi: 10.11947/j.AGCS.2016.20150135 ZOU W B, ZHANG B, HONG X B, et al. Soil moisture retrieval using reflected signals of BeiDou GEO satellites[J]. Acta Geodaetica et Cartographica Sinica, 2016, 45(2): 199-204(in Chinese). doi: 10.11947/j.AGCS.2016.20150135
[8]	LI W Q, FABRA F, YANG D K, et al. Initial results of typhoon wind speed observation using coastal GNSS-R of BeiDou GEO satellite[J]. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016, 9(10): 4720-4729. doi: 10.1109/JSTARS.2016.2523126
[9]	WU J, CHEN Y L, GAO F, et al. Sea surface height estimation by ground-based BDS GEO satellite reflectometry[J]. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020, 13: 5550-5559. doi: 10.1109/JSTARS.2020.3024743
[10]	ZAVOROTNY V U, LARSON K M, BRAUN J J, et al. A physical model for GPS multipath caused by land reflections: toward bare soil moisture retrievals[J]. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2009, 3(1): 100-110.
[11]	KATZBERG S J, TORRES O, GRANT M S, et al. Utilizing calibrated GPS reflected signals to estimate soil reflectivity and dielectric constant: Results from SMEX02[J]. Remote Sensing of Environment, 2006, 100(1): 17-28. doi: 10.1016/j.rse.2005.09.015
[12]	WAN W, CHEN X W, ZHAO L M, et al. Near-surface soil moisture content measurement by GNSS reflectometry: An estimation model using calibrated GNSS signals[C]// Proceedings of IEEE International Geoscience and Remote Sensing Symposium. Piscataway: IEEE Press, 2012: 7523 -7526.
[13]	ALEJANDRO E E. GNSS reflectometry for land remote sensing applications[D]. Barcelona: Polytechnic University of Catalonia, 2013.
[14]	ROUSSEL N, FRAPPART F, RAMILLIEN G. Detection of soil moisture variations using GPS and GLONASS SNR data for elevation angles ranging from 2° to 70°[J]. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016, 9(10): 4781-4794. doi: 10.1109/JSTARS.2016.2537847
[15]	洪学宝, 张波, 杨东凯, 等. 地基GNSS-R功率测量应用中的天线方向性影响分析[J]. 北京理工大学学报, 2021, 41(6): 658-664. doi: 10.15918/j.tbit1001-0645.2020.062 HONG X B, ZHANG B, YANG D K, et al. Antenna directivity effect analysis for ground-based GNSS-R power measurement applications[J]. Transactions on Beijing Institute of Technology, 2021, 41(6): 658-664(in Chinese). doi: 10.15918/j.tbit1001-0645.2020.062
[16]	洪学宝, 张波, 阮宏梁, 等. 基于相关功率修正的地基 GNSS-R 土壤湿度反演[J]. 北京航空航天大学学报, 2021, 47(8): 1558-1564. HONG X B, ZHANG B, RUAN H L, et al. Ground-based GNSS-R soil moisture retrieval based on correlation power correction[J]. Journal of Beijing University of Aeronautics and Astronautics, 2021, 47(8): 1558-1564(in Chinese).
[17]	ZAVOROTNY V U, VORONOVICH A G. Scattering of GPS signals from the ocean with wind remote sensing application[J]. IEEE Transactions on Geoscience and Remote Sensing, 2000, 38(2): 951-964. doi: 10.1109/36.841977
[18]	杨东凯, 张其善. GNSS反射信号处理基础与实践[M]. 北京: 电子工业出版社, 2012: 82-92. YANG D K, ZHANG Q S. GNSS reflected signal processing: Fundamentals and applications[M]. Beijing: Publishing House of Electronics Industry, 2012: 82-92(in Chinese).