船用捷联惯导系统动态初始对准技术研究  

Dynamic initial alignment technique for shipborne SINS

作　　者：张爱军[1] 王昌明[1] 何云峰[1] 

机构地区：[1]南京理工大学机械工程学院,南京210094

出　　处：《船舶工程》2009年第1期44-46,共3页Ship Engineering

摘　　要：针对捷联惯组动态对准精度低,初始误差大且每次各异的缺点,提出利用船位推算位置误差对航向误差角进行补偿的方法.船体从起始位置航行到达一个位置已知点,由船位推算位置与实际位置的误差即可计算出航向误差角,同时消除累计位置误差,提高导航精度.最后通过湖态试验验证了该方法的有效性.Based on the low precision of SINS in the dynamic initial fine alignment, which has a large initial error and different with each other in every time, a method of compensating the heading error angle is proposed, which makes use of the accommodation reckoning to predict the position error The vehicle sails from the initial position, and then reaches a position-known point. According to the accommodation reckoning, the error between the original position and the real position is acquired so that the heading error angle can be calculated, the cumulative error is eliminated at the same time, and the precision of navigation is improved. At last, the effectiveness of the method is tested by Lake-experiment.

关 键 词：船舶 导航设备 捷联惯组 动态对准 船位推算 航向误差角 

分 类 号：U666.12[交通运输工程—船舶及航道工程]