摘要
全球导航卫星系统GNSS和惯性导航系统INS都是目前世界上应用最为广泛的导航方法之一。组合导航利用二者较强的非相似性和互补性,将两者组合起来,可以取长补短充分发挥各自的优点。本文通过理论推导和仿真试验的手段,比较分析了有速度和无速度辅助时接收机跟踪环路的性能,计算及方真结果表明了GNSS接收机在有惯性速度辅助的情况下接收机的跟踪性能较无速度辅助时有了明显的提高,为工程应用奠定了理论基础。
Global Navigation Satellite System and Inertial Navigation System both are one of the most universal adopted methods in the application of navigation in the world. The combined navigation combined the two system by using the strong noncomparability and complement of them, which made it possible to use the advantages and avoid the disadvantages of the two system. This paper analyze the performance of GNSS receiver tracking loop between with and without velocity aid, by the method of theoretic derivation and simulation. The results demonstrated predominances of the tracking loop aided by the inertial velocity, has been imploved apparently and laid the theory foundation for the engineering application of GNSS/INS combination system.
出处
《无线通信技术》
2008年第1期34-36,41,共4页
Wireless Communication Technology
