Gyroscope Free Strapdown Inertial Navigation System using rotation modulation
In order to improve precision of Gyroscope Free Strapdown Inertial Navigation System (GFINS), the idea of rotation modulation is adopted. And a new scheme of GFINS using 10 accelerometers is proposed, which is convenient for modulation all of the accelerometers. Through rotating around three orthogonal axes respectively, biases of all 10 accelerometers in the GFINS can be modulated by sinusoid and cosine functions. Procedures of both navigation calculation and rotation modulation in the 10-accelerometer based GFINS are derived. The scheme of GFINS and the rotation modulation method are simulated and verified. Simulation results show that precision of GFINS has been improved by more than 50％ after rotation modulation.
gyroscope free Strapdown Inertial Navigation System accelerometer Rotation modulation.
An Li FangJun Qin JiangNing Xu SaiJiang
Department of Navigation Engineering Navy University of of Engineering Wuhan, P. R. China Institute of Seismology CEA Wuhan, P. R. China
国际会议
长沙
英文
2537-2540
2009-10-10（万方平台首次上网日期，不代表论文的发表时间）