船用捷联惯导系统在系泊状态下的快速初始对准方法  

A Rapid Initial Alignment Method of Marine Strapdown Inertial Navigation System on Moor Base

作　　者：程向红[1] 万德钧[1] 房建成[1] 

机构地区：[1]东南大学

出　　处：《船舶工程》1997年第6期38-42,3,共5页Ship Engineering

摘　　要：建立了捷联惯导系统（SINS）的误差模型，并利用PWCS理论对系统模型进行了可观测性分析。在可观测性分析的基础上提出了一种快速估计方位失准角ψυ的方法，从而大大缩短了系泊状态下初始对准时间，提高了对准速度。最后，通过计算机仿真证明了该方法的有效性。An error model for Strapdown Inertial Navigation System (SINS) on Mooring condition is introduced in this paper. The analysis for the observability of this system is developed on the base of PWCS theory. A rapid estimation method of the azimuth error Ψu is presented for the alignment of the SINS on mooring condition. By using of this method, the alignment time is reduced considerably. Finally, the validity of this rapid alignment method is demonstrated by the computer simulation results.

关 键 词：捷联惯导 可观测性分析 系泊对准 船舶 

分 类 号：U675.92[交通运输工程—船舶及航道工程]