摘要
对捷联惯导系统的误差源进行了深入分析,结果表明当陀螺仪刻度系数误差较大时,捷联惯导系统定位误差闭合现象较明显,即飞机返场时,误差有明显减小的现象;分析了舒拉调谐周期对惯导系统位置误差的影响并进行仿真,仿真结果验证了舒拉调谐对误差的调制作用,即在舒拉周期振荡分量的影响下,惯导系统的累积误差在某段时间内存在误差减小现象.
The source of errors of the strapdown inertial navigation system is analyzed.It shows that the phenomena of closed position error becomes obviously with the increase of the scale coefficient error of the gyro.That is to say,when the plane comes back to airdrome,the error reduces obviously.The effect of Schuler tuned cycle on position error is analyzed and simulated.The result proves that Schuler tuned cycle modulates the error and the accumulating error of the inertial navigation system reduces in some time under the influence of Schuler cycle.
出处
《海军航空工程学院学报》
2006年第6期607-610,636,共5页
Journal of Naval Aeronautical and Astronautical University
关键词
捷联惯导系统
刻度系数误差
误差闭合
误差减小
舒拉周期
strapdown inertial navigation system
scale coefficient error
closed error
error reducing
Schuler cycle
