论文部分内容阅读
随着信息技术的发展,组合导航越来越受重视。随着研究的不断深入以及工程需求的提出,对组合导航的综合性能要求也越来越高。高动态将导致信号跟踪性能下降,进而导致导航精度降低,甚至卫星失锁。松、紧组合在高动态中会出现误差累计和循环滑动,本文介绍了超紧组合,并结合其特点给出模型,针对高动态引起的问题提出相应的超紧组合模型。仿真结果显示,与传统的组合导航比较,在高动态环境中超紧组合能在较少的解算时间内精确导航。
With the development of information technology, integrated navigation is more and more important. With the deepening of research and engineering requirements, the comprehensive performance requirements of integrated navigation are also getting higher and higher. High dynamics will lead to a decrease in signal tracking performance, which in turn will result in lower navigation accuracy and even satellite loss of lock. In this paper, we introduce the ultra-tight combination, combine with its characteristics, and propose the corresponding ultra-tight combination model for the problems caused by high dynamic. The simulation results show that the ultra-tight combination in high dynamic environment can accurately navigate with less solution time compared with traditional integrated navigation.