双轴旋转惯导系统误差自标定技术研究

Research on Self-calibration Technology of Two-Axis Rotation Inertial Navigation System

惯导系统受限于目前惯性器件长期稳定性水平,对服役期内武器装备的使用和维护提出了定期标定的保障需求。当前主要有两种标定方式:不拆卸情况下的武器装备整体标定与拆卸情况下的惯导系统单机标定。上述两种方式能够准确分离和标定的误差参数较少,且对设备、场地、人力、时间等保障条件提出了较高的要求。基于双轴旋转惯导系统开展自标定技术研究,设计了一种能够实现绝大部分误差分离和标定的转位方案,提出了一种大幅缩短标定时间的数据处理方案,实现了武器装备不拆卸、不转动条件下误差参数的快速、高精度、自动化标定,大大降低了武器装备的使用维护成本、减轻了部队的保障负担,试验结果验证了该自标定方法的正确性和有效性。

Subjecting to long-term stability engineering level of inertial meter, inertial navigation system needs to be calibrated at regular intervals in the weapon’s term of service. Nowadays, there are two ways of calibration: calibrating the entire weapon by rotation without disassembly, and calibrating the inertial navigation system demounted from weapon on the turntable. In the above two ways, few error parameters can be separated and calibrated accurately, and the requirement is high for equipment, site, manpower, time, etc. This paper studied on Self-Calibration Technolo-gy based on two-axis rotation inertial navigation system, devised a plan of rotation with which all error parameters can be separated and calibrated accurately, presented a program of data processing with which calibration time can be shorten substantially. With the proposed solution, most of the error parameters can be separated and calibrated with speediness, high-accuracy and automation without need to rotate or dismount weapon, significantly reducing the costs of maintenance and the burden of the force support. The test results verified the correctness and effectiveness of the solution.