[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 Xuefen^{1, 2}, Chen Xiyuan^{1, 2}, Chen Jianfeng^{1, 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:

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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]

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