捷联惯导的加速度计测量误差研究  

Research on Measurement Error of the SINS's Accelerator

作　　者：彭荆明[1] 舒旭光[1] 徐良波[1] 

机构地区：[1]中国船舶重工集团公司第七一○研究所,湖北宜昌443003

出　　处：《水雷战与舰船防护》2007年第4期1-4,共4页Mine warfare & Ship Self-Defence

摘　　要：从工具误差和安装误差2个方面对捷联惯导系统的加速度计测量误差进行了研究。首先详细介绍了加速度计工具误差的标定原理、测试设备、测试方法和数据处理方法;然后在工具误差模型的基础上推导了加速度计的安装误差公式,得到了三轴实际加速度与加速度计输出之间的关系。实践结果表明,以此方法标定的加速度计误差系数为基础的捷联惯导系统的导航精度较高,说明该标定方法切实可行。A study is carried on the measurement error of the accelerator of strapdown inertial navigation system(SINS)from the two aspects of instrumental and installing error.Firstly,a specific introduction is given about the calibration principle,test equipment,test method and data processing method.The installing error formula is derived based on the instrumental error model and the relation between the accelerator output and the actual 3-axis acceleration value is acquired.The practical results show high navigation accuracy of SINS based on the accelerator's error coefficient through this calibration method,which indicates that this method is feasible.

关 键 词：捷联惯导 加速度计 测量误差 误差标定 

分 类 号：TH824.4[机械工程—仪器科学与技术]