基于SOPC的双GPS/MSINS组合导航系统设计  

Design of Dual-GPS/MSINS Integrated Navigation System Based on SOPC

作　　者：王鹏飞[1] 于晓洲[1] 周军[1] 白博[1] 

机构地区：[1]西北工业大学精确制导与控制研究所,西安710072

出　　处：《计算机测量与控制》2013年第8期2221-2223,共3页Computer Measurement &Control

基　　金：2011年欧盟第七框架协议(284427)支持项目

摘　　要：针对GPS数据更新频率低,而MSINS(Micro-Strapdown Inertial Navigation Systems)误差随时间积累的特点,提出了双GPS/MSINS组合导航系统方案;首先,根据系统需求设计了基于SOPC(System on Programmable Chip)的组合导航系统硬件方案;其次,为了解决以往单GPS/MSINS组合姿态精度不高的问题,给出了在松耦合方式下的双GPS/MSINS组合的状态方程和测量方程;最后,对系统进行了实验验证;结果表明,双GPS/MSINS组合导航系统能提供更好的定位精度(优于±1m)和定姿精度(优于±1°)。In accordance with features of GPS： Low--data update frequency, and MSINS： the navigation errors grow without bound o- ver time, an integrated navigation system based on Dual--GPS/MSINS is presented. First, the hardware solution of integrated navigation system based on SOPC is designed to fulfill the demands of such systems. Second, in order to overcome low attitude accuracy of the single-- GPS/MSINS integration, observation equations and state equation of the Dual--GPS/MSINS integration is designed in a loosely coupled ap- proach. At last, the experiment of the DuaI--GPS/MSINS integration is conducted. The results indicate that DuaI--GPS/MSINS integration is able to provide better location （better than _＋lm） and attitude （better than ±1°） accuracy.

关 键 词：GPS MSINS SOPC 组合导航系统 松耦合 

分 类 号：V249.32[航空宇航科学与技术—飞行器设计]