炮用GPS/GLONASS定位系统研究

【作者】 陆旭明；

【导师】 王永生；

【作者基本信息】 西北工业大学 ， 通信与信息系统， 2001， 硕士

【摘要】 本文是结合总装备部的科研项目“炮用GPS/GLONASS定位系统”的部分研究成果撰写而成的。 论文分析了炮用定位系统的技术要求，给出了炮用GPS/GLONASS定位系统的方案，完成了系统硬件和软件的设计与调试，它已作为炮用GPS/GLONASS定位系统的原理样机。 此外，进行了从接收卫星电文到GPS数据处理的计算机仿真，讨论了进一步提高定位精度的可行方法——相位平滑伪距法和载波相位定位法。相位平滑伪距法可以达到米级的定位精度，载波测量法可以达到厘米级甚至更高。但在载波相位测量技术中，如何快速确定整周模糊度是一个技术难点，本文给出了一种快速确定整周模糊度改进算法。仿真结果表明，这种算法速度较快，准确度较高。更多还原

【Abstract】 This paper is based on the Scientific research project of Special Positioning Service which will employ in artillery. The technique request of the ArtiJlery Positioning System is introduced. The paper proposed the scheme of the project in detail, as well as the design of hardware and software. The terminal designed is demonstrated as theory model. Besides, simulation is processed from receiving the raw data to the GPS data procession .The paper finally discussed some methods to improve precision Phase smooth Pseudo-range and Carrier Phase Observation. Using the way of Phase smooth Pseudo-range, the precision can reach several meters and centimeters or even less using Carrier Phase Observation. To capture GPS integer ambiguity is a problem still discussing in the technique of Carrier Phase measurement. A way of improvement for fast GPS ambiguity resolution is presented. The simulation results show precision can be improved in this way.更多还原