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[1] Zhu Xuefen, Chen Xiyuan, Chen Jianfeng, et al. Design and implementation of the simulation systemfor GPS new civil signals [J]. Journal of Southeast University (English Edition), 2012, 28 (3): 305-309. [doi:10.3969/j.issn.1003-7985.2012.03.009]
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Design and implementation of the simulation systemfor GPS new civil signals()
GPS新民用信号仿真系统的设计与实现
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
28
Issue:
2012 3
Page:
305-309
Research Field:
Electromagnetic Field and Microwave Technology
Publishing date:
2012-09-30

Info

Title:
Design and implementation of the simulation systemfor GPS new civil signals
GPS新民用信号仿真系统的设计与实现
Author(s):
Zhu Xuefen1;  2;  Chen Xiyuan1;  2;  Chen Jianfeng1;  2;  3
1 School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China
2 Key Laboratory of Micro-Inertial Instrument and Advanced Navigation Technology of Ministry of Education, Southeast University, Nanjing
祝雪芬1;  2;  陈熙源1;  2;  陈建锋1;  2;  3
1东南大学仪器科学与工程学院, 南京 210096; 2东南大学微惯性仪表与先进导航技术教育部重点实验室, 南京 210096; 3江苏大学电气信息工程学院, 镇江 212013
Keywords:
modernized GPS;  L2 civil signal;  L1 civil signal;  L5 signal;  simulation system
现代化的GPS;  L2民用信号;  L1民用信号;  L5信号;  仿真系统
PACS:
TN967.1
DOI:
10.3969/j.issn.1003-7985.2012.03.009
Abstract:
In order to research on the design and implementation of a modernized GPS civil signals simulation system, a brief review of the modernized GPS signals is introduced, including the signal structure and characteristics of L2C, L5 and L1C signals. The design and implementation of the main modules of the simulation system is described in detail. The simulation system is mainly composed of parameter setting, system initialization, signal generator, noise generator, disturbance generator, signal synthesis, low-pass filter, A/D conversion and storage. The simulation results based on Matlab are then presented, and the power spectral density(PSD)of all navigation signals is analyzed. The simulation system completes the physical layer simulation of a modernized GPS new civil signal and can provide a controllable signal source for designing and testing of modernized GPS civil receivers, especially for the signal processing algorithm design of the GPS software receiver.
为了研究现代化的GPS新民用信号仿真系统的设计和实现, 介绍了现代化的GPS信号组成及其结构特点, 包括L2C, L5和L1C信号.对仿真系统各模块的设计和实施方法进行了详细描述.该信号仿真系统主要包括:参数设置、系统初始化、信号产生、噪声产生、干扰产生、信号合成、低通滤波、A/D转换以及信号存储等主要功能模块.通过Matlab对该信号仿真系统进行仿真, 并重点分析了所有导航信号的功率谱密度.结果表明该仿真系统能够完成现代化的GPS新民用信号物理层仿真, 并可为现代化的GPS民用接收机尤其是软件接收机的设计和测试提供可控信号源.

References:

[1] Alkan R M, Karaman H, Sahin M. GPS, GALILEO and GLONASS satellite navigation systems & GPS modernization[C]//Proceedings of 2nd International Conference on Recent Advances in Space Technologies. Istanbul, Turkey, 2005: 390-394.
[2] Engel U. A theoretical performance analysis of the modernized GPS signals[C]//Proceedings of IEEE/ION Position, Location and Navigation Symposium. Monterey, California, USA, 2008: 1067-1078.
[3] De Agostino M, Piras M, Porporato C. The new L2C GPS code: signal and positioning quality analysis[C]//Proceedings of 21st International Technical Meeting of the Satellite Division of the Institute of Navigation. Savannah, GA, USA, 2008: 544-552.
[4] Mariappan S, Badu S R, Rao S B. Acquisition and tracking strategies of modernised GPS L2C signal[C]//Proceedings of International Conference on Recent Trends in Information Technology. Chennai, India, 2011: 281-285.
[5] Global Positioning Systems Wing. IS-GPS-200, revision D: Navstar GPS space segment/navigation user interfaces[S]. CA, USA: GPS Joint Program Office and ARINC Engineering Services, 2004.
[6] Hegarty C J, Ross J T. Initial results on nominal GPS L5 signal quality[C]//Proceedings of 23rd International Technical Meeting of the Satellite Division of the Institute of Navigation. Portland, OR, USA, 2010: 935-942.
[7] Hein G W. MBOC: the new optimized spreading modulation recommended for Galileo E1 OS and GPS L1C[C]//Proceedings of IEEE/ION Position, Location and Navigation Symposium. San Diego, CA, USA, 2006: 24-27.
[8] Global Positioning Systems Wing. IS-GPS-800 Navstar GPS space segment/user segment L1C interfaces[S]. CA, USA: GPS Joint Program Office and ARINC Engineering Services, 2008.
[9] Kaplan E D, Hegarty C J. Understanding GPS principles and applications[M]. 2nd ed. Boston: Artech House, Inc, 2005.
[10] Tsui J B. Fundamentals of global positioning system receivers: a software approach[M]. 2nd ed. Hoboken, Wiley, 2007.
[11] Deng C, Wang D D. Study and simulation of digital IF GPS signals[C]//Proceedings of International Conference on Machine Learning and Cybernetics. Guilin, China, 2011: 544-547.

Memo

Memo:
Biography: Zhu Xuefen(1983—), female, doctor, lecturer, zhuxuefen@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.41104015), Foundation of Key Laboratory of Micro-Inertial Instrument and Advanced Navigation Technology of Ministry of Education(No.201011).
Citation: Zhu Xuefen, Chen Xiyuan, Chen Jianfeng. Design and implementation of the simulation system for GPS new civil signals[J].Journal of Southeast University(English Edition), 2012, 28(3):305-309.[doi:10.3969/j.issn.1003-7985.2012.03.009]
Last Update: 2012-09-20