GAT高精陀螺仪在干扰环境下定向化学测量技术创新研究

Innovative research on directional chemical measurement technology of GAT high precision gyroscope in interference environment

高精度的陀螺仪作为一种在地下工程测量中必不可少的定向测量工具,对社会的建设和发展有着重要意义。以GAT高精度磁悬浮陀螺全站仪为实验对象,展开陀螺精密定向化学测量数据处理研究。对陀螺定向基本原理与定向过程进行解读,探究了陀螺精密定转子电流特征,采用LFU算法设计了一种基于定转子电流分布特征的数据处理算法,并以陀螺精密分别在弱干扰和强干扰状态下的定向测量数据组为处理单元,进行处理与分析。该算法可有效去除海量定向测量数据组中受到异常干扰的数据组,可提升陀螺精密定向测量结果精准性。

As an indispensable directional measurement tool in underground engineering survey,high precision gyroscope is of great significance to the construction and development of society.Taking GAT high precision maglev gyro total station as the experimental object,the research on data processing of precise gyroscopic directional measurement is carried out.Firstly the basic principle of gyro orientation and orientation process is analyzed,and the precision gyro rotor current characteristics are explored.LFU algorithm is adopted to design a kind of data processing algorithm based on the characteristics of the rotor current distribution,and the data set of gyroscope precision directional measurement under weak and strong interference conditions is processed and analyzed.The algorithm can effectively remove the abnormal interfered data sets from the massive directional measurement data sets and improve the precision of the gyroscopic precision directional measurement results.