CAJ | 학술논문

针对捷联惯性导航系统中加速度计组合需要定期标定的问题,提出了一种能在载体上快速进行加速度计自动标定的技术方案,并给出了基本数学模型.该方案利用加速度计一次通电稳定性高于其逐次通电稳定性的特性,提高了加速度计组合的使用精度.研制了一种自标定加速度计组合,样机结合惯性技术与机电控制技术,实现了在外部控制下的自标定和自动锁紧功能.样机测试结果表明该技术方案可明显提高加速度计的模型参数精度;经过进一步工程化研究后,可在高精度惯性导航与制导和其他需要使用高精度加速度计的领域中得到应用和推广.
침대첩련관성도항계통중가속도계조합수요정기표정적문제,제출료일충능재재체상쾌속진행가속도계자동표정적기술방안,병급출료기본수학모형.해방안이용가속도계일차통전은정성고우기축차통전은정성적특성,제고료가속도계조합적사용정도.연제료일충자표정가속도계조합,양궤결합관성기술여궤전공제기술,실현료재외부공제하적자표정화자동쇄긴공능.양궤측시결과표명해기술방안가명현제고가속도계적모형삼수정도;경과진일보공정화연구후,가재고정도관성도항여제도화기타수요사용고정도가속도계적영역중득도응용화추엄.
A solution which can rapidly self-calibrate accelerometers in a carrier is brought out aiming at the problem that accelerometer unit of strapped-down inertial navigation system need calibration periodically. The basic mathematic model of self-calibration is presented. With the advantage that the accelerometer's bias stability is better than the bias repeatability, the precision of accelerometer units is promoted. A self-calibrated accelerometer unit is developed. The inertial technology and the electromechanical technology are adopted in the development of the prototype in which self-calibration and self-lock under exterior control are implemented. The measurement result testifies the solution can remarkably promote the practical precision of accelerometer. With further research, the self-calibrated accelerometer unit will have a very good prospect in high precision inertial navigation and other applications which need high precision accelerometers.