惯导系统无阻尼综合校正方法研究  

Research on Undamped Comprehensive Calibration of INS

作　　者：夏卫星[1] 杨晓东[2] 王炜[2] 

机构地区：[1]海军潜艇学院训练大队,青岛266042 [2]海军潜艇学院航海观通系,青岛266042

出　　处：《中国造船》2012年第4期100-108,共9页Shipbuilding of China

基　　金：总装备部预先研究项目(513240202)

摘　　要：为满足高精度导航要求,提高惯导系统综合校正精度,扩展综合校正方法使用范围,,设计了惯导系统海上无阻尼综合校正方法。首先使惯导系统综合校正时处于无阻尼状态,满足舒拉振荡条件;其次基于观测信息,采用Kalman滤波技术实时估计水平误差角;最后将估计结果引入传统综合校正过程,对其作改进设计。仿真结果表明,无阻尼综合校正方法具有更强的适用性,尤其舰艇作机动航行时,提高了综合校正精度,较大程度上抑制了误差发散,弥补了传统综合校正方法的不足。In order to satisfy high-accuracy navigation, to improve comprehensive calibration accuracy of INS, to enlarge the applying range of comprehensive calibration, and to satisfy Schuler cycle oscillation, the undamped comprehensive calibration of INS is designed. First, INS in undamped state is made when comprehensive calibration; then based on observations, Kalman filter is used to estimate horizontal-angle error; at last, estimation is combined with traditional comprehensive calibration and network is improved. The simulation results show that undamped comprehensive calibration has much more applicability, especially in ships＇ maneuver action, improves comprehensive calibration accuracy, prevents error divergence in a large extent, and recuperates the shortage of traditional comprehensive calibration.

关 键 词：无阻尼综合校正 KALMAN滤波 舒拉振荡 机动航行 

分 类 号：U666.1[交通运输工程—船舶及航道工程]