基于加速度计的水下校正惯导系统  

Underwater Correcting INS Based on Accelerometer

作　　者：杨晓东[1] 施闻明[1] 徐彬[1] 

机构地区：[1]海军潜艇学院航海观通系,山东青岛266071

出　　处：《中国造船》2008年第1期107-111,共5页Shipbuilding of China

摘　　要：提出一种利用惯性传感器-加速度计来测量重力异常值,并与数字海洋重力图进行匹配的导航方法,较为有效地解决了潜器水下校正惯导误差的问题。A method of correcting INS by using gravity abnormity measured by accelerometer to match sea gravity map is presented. According to gravity data and digit gravity map, correlation analysis is performed to match and to get optimal route. Then using position errors as extended Kalman filter estimarion value, INS error estimation and optimal navigation state are obtained. The simulation result shows that this method can resolve the problem of submersible underwater inertial navigation efficiently.

关 键 词：船舶 舰船工程 加速度计 重力异常 扩展Kalman滤波 

分 类 号：U666.1[交通运输工程—船舶及航道工程]