舰载捷联惯导数字仿真器的设计与研究

Design and Research of Shipborne SINS Digital Simulator

摘要:

针对舰载惯导系统在边界工作条件尤其是极地地区性能评估存在实时输出数据难度大的问题,以舰艇的运动特性为依据,建立舰艇的运动学模型和惯性器件的数学模型,设计了一种舰载捷联惯导系统数字仿真器,实现了在不同的航行状态、不同的海况条件,以及不同的惯性器件精度条件下惯导系统的实时仿真,仿真输出的数据在虚拟多功能显示器以文字和曲线的形式显示。结果表明,该仿真器能灵活的模拟各种导航参数,有助于突破舰载导航系统性能评估受试验海域和试验载体等因素限制的局限性,可以为研究边界工作条件下惯导系统性能提供试验依据。

Abstract:

In view of the difficulty of real-time output data for the performance evaluation of shipborne inertial navigationsystem at the boundary conditions, especially in polar regions, in this paper, a digital simulator of shipborne SINS based onthe kinematics model of the ship and the mathematical model of inertial devices was designed, and the real-time digitalsimulator was realized under different navigation conditions, different sea conditions and different inertial device precisionconditions. The simulation output data were displayed on virtual multi-functional display in the form of words and curves.The result shows that the simulator can simulate various navigation parameters flexibly, which can break through limitationof shipborne SINS by the factors of sea area and test carrier and provide reliable experimental basis for the study of the per?formance of INS under boundary working conditions.