摘要
对固定指北方位、自由方位、游动方位三种方案的当地水平惯导系统进行了误差仿真。仿真结果表明,自由方位和游动方位两种方案的惯导系统的方位角误差是发散的;固定指北方位系统的方位误差角是振荡的,但不发散;除了方位误差角特性不同外,固定指北方案和游动方案的其余误差特性基本相同。自由方位系统的姿态角误差和速度误差没有傅科周期振荡,自由方位惯导系统的经度误差增长最慢。
The errors of three schemes of INS which contained fixed- north,free- azimuth and walk- azimuth are simulated. The simulation results show that the azimuth error of the free - azimuth and walk - azimuth scheme is always increasing, the fixed - north scheme is oscillating but not increasing, the error characteristics of fixed - north and walk - azimuth scheme are almost same except azimuth error,the attitude angle error and speed error of free -azimuth have no Foucault cycle oscillations,the longitude error of free- azimuth is increasing the most slowly.
出处
《现代电子技术》
2009年第11期1-4,共4页
Modern Electronics Technique
