华中科技大学学报（自然科学版）Issue(6)：101-106,6.DOI:10.13245/j.hust.140620
基于位置信息的捷联惯导系统综合校正技术
Comprehensive correction technology of strapdown inertial navigation system based on position information
摘要
Abstract
For platform inertial navigation system ,the carrier should be limited under the state of low speed and same latitude w hen comprehensive correction .In order to solve this problem ,the compre-hensive correction technology of strapdown inertial system (SINS) based on inertial coordinate system was proposed .For traditional two point comprehensive correction algorithm which needed the accurate azimuth information ,but because of the installation deviation ,the accurate azimuth information could not be deserved ,algorithm of three point comprehensive correction was employed .The relationship between of gyro drifts and azimuth errors could be developed based on intermittent external position information ,and the least square algorithm was used to evaluate gyro drifts and compensate azimuth errors .Theoretical and experimental analysis show that when the SINS works under the state of hori-zontal damping ,three point comprehensive correction method would not be affected by the carriers′motion state and could compensate azimuth error accurately ,thus significantly improving positioning accurate of low precision SINS .关键词
捷联惯导系统/惯性系/水平阻尼/综合校正/位置信息Key words
strapdown inertial system (SINS)/inertial coordinate system/horizontal damping/comprehensive correction/position information分类
信息技术与安全科学引用本文复制引用
高伟,史宏洋,张鑫,杨建..基于位置信息的捷联惯导系统综合校正技术[J].华中科技大学学报（自然科学版）,2014,(6):101-106,6.基金项目
高等学校博士学科点专项科研基金资助项目（20102304110021）；国家自然科学基金资助项目（51179039）． （）
