Study of Independent Initial Alignment Based on Gyroscope Free Strapdown Inertial Navigation System

摘要：

Conventional strapdown inertial navigation system is usually measured angular velocity with gyroscope and acceleration measuring a force signal with accelerometer for the initial alignment. GFSINS uses accelerometers that use the output from the ratio of force to solve the angular velocity instead of gyroscopes for the initial alignment. Based on a nine-accelerometer configuration and use of logarithmic algorithms give the solution of results of the acceleration and angular velocity, and analyze the principle of the initial alignment. In the static base, we analyze the initial alignment issues of GFSINS, use the kalman filter to reduce the accumulation of errors, and derive a kalman filter state equation and the prediction equation, at the same time do some simulations for the initial alignment.

关键词： GFSINS Initial Alignment Logarithmic Algorithm Angular Velocity Kalman Filter

作者: Zhen Shi Zijian Cheng Jie Yang

作者单位: Harbin Engineering University, Harbin 150001, China

会议类型: 国际会议

会议名称: The 22nd China Control and Decision Conference(2010年中国控制与决策会议)

会议地点: 徐州

会议语种:英文

页码: 2198-2202

在线出版日期: 2010-05-26（万方平台首次上网日期，不代表论文的发表时间）