【摘要】 水平姿态误差标定是提高测量船惯性导航系统精度的重要手段。传统的水平精度标定一般只能在实验室或坞内等静态条件下通过高精度水平仪来实现。针对动态条件下水平作差、平台旋转及经纬仪方位俯仰信息联立求解等标定方法存在标定条件苛刻、精度相对较低等局限性,提出了一种基于星体测量的惯导水平姿态标定新技术——俯仰脱靶量求解法,推导了计算公式,并对解算精度进行了系统分析。通过惯导精度鉴定及某次试验任务的检验,其解算精度在5.8″以内,具有较高的置信度。该方法解决了惯导水平姿态动态条件下标定的技术难题,为提高惯导水平姿态精度、实战数据的事后处理以及动态条件下加速度计零位标定提供了依据,对提高航天测量船总体测量精度具有重要意义。更多还原

【Abstract】 Horizontal attitude calibration is an important means for improving the precision of the space tracking,telemetering and command ship’s inertial navigation system.Since rigorous condition and low precision exist in the traditional methods such as attitude difference,platform rotation and simultaneous equations of theodolite’s azimuth-elevation etc.,a new technology of horizontal attitude calibration of inertial navigation based on star measurement was presented,which is independent solution method of pitching undershoot error.The formula was concluded and its precision was analyzed.The precision verifying of the inertial navigation system and trial results show that its error less than 5.8″,and it is high reliable and can resolve the problem of horizontal attitude calibration of inertial navigation in dynamic condition,which contribute to the improvement of horizontal attitude precision of inertial navigation,zero calibration of accelerometer in dynamic condition and afterwards processing of actual data.It can improve the precision of the space tracking,telemetering and command ship.更多还原