北斗二号导航信号软件模拟源的研究与实现
发布时间：2018-12-06 13:53
【摘要】：我国正在全面推动发展独立知识产权的“北斗二号”卫星导航系统，亟需能够模拟导航信号的模拟源，用于相关导航产品的研发和生产。软件模拟源具有成本低廉、能产生复杂信号、便于升级等优点。因此，本文针对“北斗二号”B1信号的软件模拟源进行深入研究，实现信号的软件仿真和硬件生成。 本文的主要研究内容包括3个方面： 首先，分析北斗卫星导航系统的基本原理以及B1信号的结构和组成。研究导航信号模拟源的仿真对象，即导航信号及其传播过程中发生的电离层延迟、对流层延迟和多径延迟等误差。 然后，根据模拟信号的要求，基于VS2008和MATLAB2010a研究导航信号的模拟方法及其软件实现的主要框架，，确定B1信号和10种干扰噪声的数据结构。开发“北斗二号”B1信号软件模拟源，基于TCP/IP协议设计远程控制功能，实现定时开关信号等功能。 最后，通过软件定义的卫星接收机多次捕获模拟B1信号，根据不同编号测距码的信号的捕获概率，验证所产生信号的正确性。实测结果证实该软件能够正确模拟“北斗二号”B1信号。
[Abstract]:China is fully promoting the development of independent intellectual property rights of the "Beidou II" satellite navigation system, it is urgent to simulate the analog source of navigation signals for the development and production of related navigation products. The software analog source has the advantages of low cost, complex signal generation and easy upgrade. Therefore, the software analog source of "Beidou 2" B1 signal is studied in this paper, and the software simulation and hardware generation of the signal are realized. The main contents of this paper include three aspects: firstly, the basic principle of Beidou satellite navigation system and the structure and composition of B1 signal are analyzed. The simulation object of the simulated source of navigation signal is studied, that is, the errors such as ionospheric delay, tropospheric delay and multipath delay occurring during the navigation signal and its propagation are studied. Then, according to the requirement of analog signal, based on VS2008 and MATLAB2010a, the simulation method of navigation signal and the main frame of its software realization are studied, and the data structure of B1 signal and 10 kinds of interference noise are determined. The software analog source of "Beidou No.2" B1 signal is developed, the remote control function is designed based on TCP/IP protocol, and the timing switch signal is realized. Finally, the analog B1 signal is captured multiple times by the satellite receiver defined by the software, and the correctness of the generated signal is verified according to the acquisition probability of the signal of different numbering ranging codes. The measured results show that the software can simulate Beidou 2 B1 signal correctly.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN96.1
本文编号：2366129
[Abstract]:China is fully promoting the development of independent intellectual property rights of the "Beidou II" satellite navigation system, it is urgent to simulate the analog source of navigation signals for the development and production of related navigation products. The software analog source has the advantages of low cost, complex signal generation and easy upgrade. Therefore, the software analog source of "Beidou 2" B1 signal is studied in this paper, and the software simulation and hardware generation of the signal are realized. The main contents of this paper include three aspects: firstly, the basic principle of Beidou satellite navigation system and the structure and composition of B1 signal are analyzed. The simulation object of the simulated source of navigation signal is studied, that is, the errors such as ionospheric delay, tropospheric delay and multipath delay occurring during the navigation signal and its propagation are studied. Then, according to the requirement of analog signal, based on VS2008 and MATLAB2010a, the simulation method of navigation signal and the main frame of its software realization are studied, and the data structure of B1 signal and 10 kinds of interference noise are determined. The software analog source of "Beidou No.2" B1 signal is developed, the remote control function is designed based on TCP/IP protocol, and the timing switch signal is realized. Finally, the analog B1 signal is captured multiple times by the satellite receiver defined by the software, and the correctness of the generated signal is verified according to the acquisition probability of the signal of different numbering ranging codes. The measured results show that the software can simulate Beidou 2 B1 signal correctly.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN96.1
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