高动态高精度GPS接收机设计
发布时间：2018-07-13 20:55
【摘要】：在当今世界,全球导航卫星系统主要分为:美国的GPS导航系统、俄罗斯的GLONASS导航系统和欧盟的GALILEO导航系统以及中国的“北斗”导航系统。全球定位系统(Global Positioning System,缩写GPS),是美国第二代卫星导航系统,是在子午仪卫星导航系统的基础上发展起来的,它采纳了子午仪系统的成功经验。它已经在地质勘探、交通运输、航天航空、国防军事等领域发挥着越来越重要的作用。由于国外技术的封锁,国内对于GPS接收机的发展起步晚,并且发展相对较慢,尤其是在航空航天、军事应用等领域,需要适应各种场景,特别是在高动态和高精度的场景。因此,对高动态高精度GPS接收机的设计有极其重要的意义。针对高动态高精度GPS接收机的设计,首先本论文简单介绍了GPS导航系统的组成和GPS信号的相关特性,然后从总体上设计出了接收机的架构,对硬件电路进行了详细的研究,通过采用PLL和FLL相结合的方法对高动态环境下GPS信号的码跟踪环路进行了优化,采用优化后的载波相位平滑伪距的算法改善了定位精度,最后对其进行了设计实现并进行了测试,高动态高精度GPS接收机的性能指标满足要求。
[Abstract]:In today's world, the global navigation satellite system is mainly divided into: the GPS navigation system of the United States, the GLONASS navigation system of Russia, the Galileo navigation system of the European Union and the "Beidou" navigation system of China. Global Positioning system (GPS) is the second generation of American satellite navigation system, which is developed on the basis of Meridian Satellite Navigation system. It adopts the successful experience of Meridian system. It has been playing a more and more important role in geological exploration, transportation, aerospace, national defense and military. Due to the blockage of foreign technology, the development of GPS receiver starts late in China, and the development is relatively slow. Especially in aerospace, military applications and other fields, it is necessary to adapt to various scenarios, especially in high-dynamic and high-precision scenarios. Therefore, it is very important for the design of high dynamic and high precision GPS receiver. Aiming at the design of high dynamic and high precision GPS receiver, the composition of GPS navigation system and the related characteristics of GPS signal are introduced briefly in this paper. Then, the architecture of receiver is designed, and the hardware circuit is studied in detail. The code tracking loop of GPS signal in high dynamic environment is optimized by the combination of PLL and FLL, and the positioning accuracy is improved by using the optimized carrier phase smoothing pseudorange algorithm. Finally, it is designed and implemented and tested. The performance index of high dynamic and high precision GPS receiver meets the requirements.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P228.4
[Abstract]:In today's world, the global navigation satellite system is mainly divided into: the GPS navigation system of the United States, the GLONASS navigation system of Russia, the Galileo navigation system of the European Union and the "Beidou" navigation system of China. Global Positioning system (GPS) is the second generation of American satellite navigation system, which is developed on the basis of Meridian Satellite Navigation system. It adopts the successful experience of Meridian system. It has been playing a more and more important role in geological exploration, transportation, aerospace, national defense and military. Due to the blockage of foreign technology, the development of GPS receiver starts late in China, and the development is relatively slow. Especially in aerospace, military applications and other fields, it is necessary to adapt to various scenarios, especially in high-dynamic and high-precision scenarios. Therefore, it is very important for the design of high dynamic and high precision GPS receiver. Aiming at the design of high dynamic and high precision GPS receiver, the composition of GPS navigation system and the related characteristics of GPS signal are introduced briefly in this paper. Then, the architecture of receiver is designed, and the hardware circuit is studied in detail. The code tracking loop of GPS signal in high dynamic environment is optimized by the combination of PLL and FLL, and the positioning accuracy is improved by using the optimized carrier phase smoothing pseudorange algorithm. Finally, it is designed and implemented and tested. The performance index of high dynamic and high precision GPS receiver meets the requirements.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P228.4
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