导航卫星双频复用信号模拟失真的仿真

蔚小龙; 寇艳红

doi:10.13700/j.bh.1001-5965.2017.0334

导航卫星双频复用信号模拟失真的仿真

doi: 10.13700/j.bh.1001-5965.2017.0334

蔚小龙,
寇艳红^,

北京航空航天大学电子信息工程学院, 北京 100083

基金项目:

国家自然科学基金 61271197

详细信息

作者简介:
蔚小龙男, 硕士研究生。主要研究方向:卫星导航

寇艳红女, 博士, 副教授。主要研究方向:卫星导航、无线通信和数字信号处理技术

通讯作者:
寇艳红, E-mail: kouy@buaa.edu.cn

中图分类号: TN967.1
计量
- 文章访问数: 598
- HTML全文浏览量: 66
- PDF下载量: 417
- 被引次数: 0
出版历程
- 收稿日期: 2017-05-19
- 录用日期: 2017-06-09
- 网络出版日期: 2018-05-20

Simulation of analog distortion of dual-frequency multiplexing signal generated by navigation satellite

YU Xiaolong,
KOU Yanhong^,

School of Electronic and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

Funds:

National Natural Science Foundation of China 61271197

More Information

Corresponding author: KOU Yanhong, E-mail: kouy@buaa.edu.cn

摘要

摘要:
导航卫星有效载荷信号生成链路组成部件的非理想特性不可避免会引起发射导航信号的失真，目前对于这种失真带来的信号测距性能损失并未有适用的解析模型。针对宽带双频复用信号的模拟失真，采用相关损耗、S曲线偏差和载波相位偏差作为评估指标，仿真评估了载荷模拟组件中高功率放大器（HPA）、HPA前置滤波器、多路复用器（OMUX）对AltBOC、TD-AltBOC、ACEBOC和AltLOC不同调制方式测距性能的影响。其中对于HPA使用了有记忆HPA行为模型，考虑了不同HPA前置滤波器带宽和HPA工作点的影响，并评估了失真信号相对于理想信号在宽带导频和单边带导频2种跟踪方式下的性能损失。仿真结果可以为信号调制方式比较评估、有效载荷信号生成链路的优化设计提供参考。
- 恒包络复用 /
- 模拟失真 /
- 相关损耗 /
- S曲线偏差 /
- 有记忆高功率放大器(HPA)
Abstract:
The non-ideal components of the signal generator of a navigation satellite payload can distort the transmitted signal. On the one hand, no applicable analytical model about the ranging performance loss caused by such signal distortions has been established by far. On the other hand, the existing simulation studies about the analog distortions of wide-band dual-frequency multiplexing signals are not quite comprehensive. Taking the correlation loss, S-curve bias, and carrier phase bias as evaluation index, this paper simulates and evaluates the effects of the payload analog components including the high power amplifier (HPA), pre-HPA filter, and output multiplexer (OMUX) on the ranging performance of 4 different dual-frequency multiplexing modulations including AltBOC, TD-AltBOC, ACEBOC and AltLOC. In the simulation, we employ a memory behavioral model of HPA instead of a memoryless model, taking the effects of different pre-HPA filter bandwidth and HPA operating points into account. In addition, the performance loss of the distorted signal relative to the ideal signal is evaluated for both the double sideband and the single sideband pilot tracking methods. The study provides a useful reference for not only the comparison and evaluation of different signal modulation schemes but also the optimization design of the payload signal generator.
- constant envelope multiplexing /
- analog distortion /
- correlation loss /
- S-curve bias /
- memory high power amplifier (HPA)

HTML全文

图 1 载荷模拟失真评估的仿真模型

Figure 1. Simulation model for evaluation of payload analog distortion

下载: 全尺寸图片幻灯片

图 2 HPA工作点对各调制方式宽带导频跟踪性能的影响

Figure 2. Impact of HPA operating points on performance of wideband pilot tracking for different modulation schemes

下载: 全尺寸图片幻灯片

图 3 HPA工作点对各调制方式下边带导频跟踪性能的影响

Figure 3. Impact of HPA operating points on performance of lower sideband pilot tracking for different modulation schemes

下载: 全尺寸图片幻灯片

图 4 HPA前置滤波器带宽对各调制方式宽带导频跟踪性能的影响

Figure 4. Impact of pre-HPA filter bandwidth on performance of wideband pilot tracking for different modulation schemes

下载: 全尺寸图片幻灯片

图 5 HPA前置滤波器带宽对各调制方式下边带导频跟踪性能的影响

Figure 5. Impact of pre-HPA filter bandwidth on performance of lower sideband pilot tracking for different modulation schemes

下载: 全尺寸图片幻灯片

表 1 理想无失真信号的评估指标测量结果

Table 1. Evaluation index measurement results of ideal signal without distortion

调制方式	宽带导频跟踪		下边带导频跟踪
调制方式	载波相位偏差/(°)	S曲线偏差/m	载波相位偏差/(°)	S曲线偏差/m
AltBOC	0.413 7	0.053 4	0.633 1	0.027 6
TD-AltBOC	0.002 8	0.008 1	0.151 9	0.020 5
ACEBOC	0.436 0	0.014 8	0.141 1	0.013 7
AltLOC			0.487 6	0.004 7

下载: 导出CSV

参考文献(17)

[1]	LESTARQUIT L, ARTAUD G, ISSLER J L. AltBOC for dummies or everything you always wanted to know about AltBOC[C]//Proceedings of the 21st International Technical Meeting of the Satellite Division of the Institute of Navigation (ION GNSS 2008). Manassas: ION, 2008: 961-970.
[2]	REBEYROL E, MACABIAU C, JULIEN O, et al. Signal distortions at GNSS payload level[C]//Proceedings of the 19th International Technical Meeting of the Satellite Division of The Institute of Navigation(ION GNSS 2006). Manassas: ION, 2006: 1595-1605.
[3]	RAPISARDA M, ANGELETTI P, CASINI E. A simulation framework for the assessment of navigation payload non-idealities[C]//2nd Workshop on GNSS Signal and Signal Processing, 2007: 24-25.
[4]	TANG Z P, ZHOU H W, WEI J L, et al.TD-AltBOC:A new COMPASS B2 modulation[J].Science China Physics, Mechanics & Astronomy, 2011, 54(6):1014-1021.
[5]	YAO Z, ZHANG J, LU M.ACE-BOC:Dual-frequency constant envelope multiplexing for satellite navigation[J].IEEE Transactions on Aerospace and Electronic Systems, 2016, 52(1):466-485. doi: 10.1109/TAES.2015.140607
[6]	唐祖平. GNSS信号设计与评估若干理论研究[D]. 武汉: 华中科技大学, 2009: 79-83. TAN Z P. Research on relevant theory for GNSS signal design and evaluation[D]. Wuhan: Huazhong University of Science and Technology, 2009: 79-83(in Chinese).
[7]	ZHU Y, YAO Z, CUI X, et al. Comparative analysis of dual-frequency constant envelop multiplexing techniques for ARNS band[C]//International Technical Meeting of the Institute of Navigation(ITM 2014). Manassas: ION, 2014: 792-801.
[8]	GAO Y, LI C, FU L, et al. Overall performance comparison of three dual-frequency constant envelop modulation schemes for GNSS[C]//Proceedings of 2016 China Satellite Navigation Conference (CSNC), 2016: 47-56.
[9]	李星, 耿淑敏, 欧钢, 等.非线性放大器对伪码测距误差的影响分析[J].国防科技大学学报, 2008, 30(5):49-55. http://mall.cnki.net/magazine/Article/GFKJ200805010.htm LI X, GENG S M, OU G, et al.A study on PN code ranging error caused by nonlinear power amplifier[J].Journal of National University of Defense Technology, 2008, 30(5):49-55(in Chinese). http://mall.cnki.net/magazine/Article/GFKJ200805010.htm
[10]	黄旭方, 胡修林, 唐祖平.星上高功率放大器对导航信号功率谱和伪码跟踪精度的影响[J].电子学报, 2009, 37(3):640-645. http://www.cnki.com.cn/Article/CJFDTOTAL-YCYK201103003.htm HUANG X F, HU X L, TANG Z P.Impact of satellite's high power amplifiers on spectrum of navigation signals and PRN tracking accuracy[J].Acta Electronica Sinica, 2009, 37(3):640-645(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-YCYK201103003.htm
[11]	吴勇敢, 刘亚欢, 程成, 等.高功率放大器和带宽对恒包络导航信号的影响分析[J].遥测遥控, 2011, 32(3):14-20. http://www.cnki.com.cn/Article/CJFDTOTAL-YCYK201103003.htm WU Y G, LIU Y H, CHENG C, et al.Analysis of the impact of high power amplifier and bandwidth on the constant envelope navigation signals[J].Journal of Telemetry, Tracking and Command, 2011, 32(3):14-20(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-YCYK201103003.htm
[12]	周鸿伟, 魏蛟龙, 张小清, 等.导航卫星有效载荷非理想特性研究[J].华中科技大学学报(自然科学版), 2014, 42(7):118-123. http://www.cnki.com.cn/Article/CJFDTotal-HZLG201407023.htm ZHOU H W, WEI J L, ZHANG X Q, et al.Reasearch on non-ideal property of payload core device on navigation satellite[J].Journal of Huazhong University of Science and Technology(Natural Science Edition), 2014, 42(7):118-123(in Chinese). http://www.cnki.com.cn/Article/CJFDTotal-HZLG201407023.htm
[13]	CHEN Y, KOU Y, ZHANG Z. Analog distortion of wideband signal in satellite navigation payload[C]//Proceedings of 2012 China Satellite Navigation Conference(CSNC), 2012: 89-100.
[14]	DING L, ZHOU G T, MORGAN D R, et al.A robust digital baseband predistorter constructed using memory polynomials[J].IEEE Transactions on Communications, 2004, 52(1):159-165. doi: 10.1109/TCOMM.2003.822188
[15]	SOELLNER M, KURZHALS C, HECHENBLAIKNER G, et al. GNSS offline signal quality assessment[C]//Proceedings of the 21st International Technical Meeting of the Satellite Division of the Institute of Navigation(ION GNSS 2008). Manassas: ION, 2008: 16-19.
[16]	杨东旭. GNSS空间信号模拟失真及其预失真方法研究[D]. 北京: 北京航空航天大学, 2015: 39-40. YANG D X. Research on simulated distortion of GNSS spatial signal and its predistortion method[D]. Beijing: Beihang University, 2015: 39-40(in Chinese).
[17]	European Union. Galileo OS SIS ICD(Issue 1. 3)[EB/OL]. [2017-05-10]. http://www.gsceuropa.eu/system/files/galileo_documents/Galileo_OS_SIS_ICD.pdf.