综合校正技术作为平台式惯导系统的一项关键系统技术,可以实现陀螺漂移的精确估算,从而实现运载体的长时间精确导航定位.但是在综合校正结束后,系统参数突变使整个导航系统的平衡状态遭到破坏,产生了系统超调,降低了系统精度.在对平台式惯导系统综合校正过程中的超调现象进行详尽研究和分析的基础上,采用自动补偿技术减小综合校正过程中的超调现象.仿真和工程试验结果表明:该方法能够大大减小平台式惯导系统综合校正过程中的超调.
Comprehensive calibration is a crucial technique for inertial navigation systems (INS). It calibrates gyro drift accurately, allowing high precision navigation of ships. However, the precision of the system is destroyed by any changes to system parameters after finishing a comprehensive calibration, resuiting in system overshoot. In this paper, we use an auto-compensation technique to eliminate overshoot during the comprehensive calibration of an INS through elaborate analysis of overshoot in the comprehensive calibration procedure. Computer simulations and practical experiments show that the suggested method can greatly reduce system overshoot.