激光陀螺捷联姿态测量系统误差建模与仿真研究

姿态测量系统需要具备准备时间短、环境适应性强、在机动过程中的精度仍能满足测量要求等特点，因此对它的动态测量精度、误差允许范围必须作严格的规定和限制。对激光陀螺捷联姿态测量系统进行了误差建模与仿真。利用Simulink完成姿态测量系统的动态误差建模，并开发了仿真的GUI界面，利用人机交互的方式实现任意状态下的测量误差的动态仿真。通过对仿真结果的分析，有助于对系统进行合理的误差分配，指导系统惯性器件的选购与配置，得出满足使用要求的设计方案，进一步提高了系统的性能。

Errors modeling and simulating in laser gyro strapdown attitude surveying system

The attitude surveying system should have the characteristics of short preparing time, good adaptability for the variable environment and surveying accurately on a mobile carder, which bring strict limit to the dynamic surveying precision and error range. In this paper, the error characteristics of laser gyro strapdown attitude surveying system are theoretically analyzed.Error equation in dynamic surveying process is also deduced using Simulink, and a GUI is also developed. The dynamic surveying error simulation can be implemented in an arbitrary state by Human-Computer interaction. It can be useful for rational distributing error, purchasing component and designing system corresponding to the guideline, which should do help to improve the capability of the system.