基于Simulink的海底捷联惯性导航系统数学仿真

Mathematical Simulation for Seabed Strap-down Inertial Navigation System Based on Simulink

该文提出海底用捷联惯性导航系统导航的设计方案。在分析了捷联惯性导航系统的工作原理的基础上,用Matlab/Simulink建立导航系统仿真模型,并进行了仿真研究。仿真模型的输出信号为载体的经度,纬度和高度,可以直接用来显示在外部计算机上或驱动误差修正模型。该方法充分利用了Simulink的优点,实现了高度可视化的仿真实验,也为捷联惯性导航系统的仿真提供了新的实现途径。该方法不但适用于系统的全数学仿真,而且可以推广到半实物仿真实验,有着很大的工程实用价值和推广意义。

The design of a seabed Strap-down Inertial Navigation System simulation is presented.According to the working principle of the Strap-down Inertial Navigation System,this paper designs the Strap-down Inertial Navigation System simulation by using the Matlab/Simulink and the system is researched. The outputs of the model are longitude, latitude and altitude,which can transmit digital data to external computer systems and error models.This way of simulation makes use of the merits of Simulink to complete the high-level visual simulation test,which provides a new approach to simulate the Strap-down Inertial Navigation System.This method is not only suitable for the digital simulation test,but also can be extended to the hardware-in-the-loop simulation test,therefore has high engineering practice value and popularization sense.