捷联式航向姿态基准系统的实时在线校正问题的研究

Study on On-Line Correction of Strapdown Heading and Attitude Reference System

随着惯性仪表和计算机技术的不断发展和完善，捷联式惯性技术近年来正从理论与实验研究中走向实际领域。由于目前捷联系统的精度指标还处于低级或中级阶段，所以捷联技术的应用对象还十分有限，提高精度指标是目前捷联式惯性技术研究领域亟待解决的问题。本文通过对捷联系统误差特性的分析，提出了捷联系统实时在线校正方法，它是一种从软件算法入手来提高捷联系统精度指标的方法。在目前从惯性仪表制造工艺等硬件方面来提高系统精度存在着很多困难的情况下，本文所研究的课题有着重大的理论意义和现实意义。

With the development of inertial devices and computer technology,strapdown inertial technique is developed from laboratory research to application area,but its area is limited for the reason of its low accuracy.The improving accuracy of strapdown inertial system,there-fore, has become the focus of its research field.This paper will introduce a real on-line correc-tion algorithm of strapdown heading and attitude reference system,which is a method of improv-ing precision of SHARS by the software algorithm.