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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers >Research on generalized inertial navigation system damping technology based on dual-model mean
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Research on generalized inertial navigation system damping technology based on dual-model mean

机译：基于双模型均值的广义惯性导航系统阻尼技术研究

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摘要

In order to solve the problem of the traditional damping method of navy inertial navigation system (INS) being a failure in high-maneuver applications there exists an overshoot when damping state of INS changed. A generalized damping algorithm based on dual-model mean is proposed in this paper. Two INS calculation loops are established, based on the INS arrange equations. These two loops calculate the same data of gyros and accelerometers dependently and at the same time. Insertion of certain data in one of the loops causes a phase difference between the two loops. Then the mean of the two loops' outputs is regarded as the system output so that the Schuler oscillation errors of INS can be suppressed. The output expression based on the dual-model damping algorithm is deduced. The damping effect of the method and the advantages and deficiency of the algorithm are analyzed theoretically. In order to verify the validity of the algorithm, simulation experiments are carried out. Simulation results show that this algorithm can suppress the Schuler oscillation error effectively irrespective of the vehicle being mobilized or not. And there does not exist overshoot errors.
机译：为了解决海军惯性导航系统（INS）的传统阻尼方法在大机动应用中失败的问题，当INS的阻尼状态发生变化时，存在过冲现象。提出了一种基于双模型均值的广义阻尼算法。基于INS排列方程，建立了两个INS计算循环。这两个回路分别并同时计算陀螺仪和加速度计的相同数据。在循环之一中插入某些数据会导致两个循环之间出现相位差。然后，将两个回路的平均值作为系统输出，从而可以抑制INS的Schuler振荡误差。推导了基于双模型阻尼算法的输出表达式。从理论上分析了该方法的阻尼效果以及算法的优缺点。为了验证算法的有效性，进行了仿真实验。仿真结果表明，该算法可以有效地抑制Schuler振荡误差，而不管车辆是否动员。并且不存在超调错误。

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