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Selection of the Filtering Correction Cycle to Improve INS/GPS Integrated Navigation Accuracy

机译:选择滤波校正周期以提高INS / GPS集成导航精度

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摘要

In order to improve the accuracy of INS/GPS integrated navigation system, especially in such a case when it works from the integrated navigation into the pure inertial navigation, the schemes of the Kalman filter correction cycle is proposed. Based on detail analysis on the error rule of INS and the error feature of the GPS output signal from several flight-test data, a reasonable correction cycle is selected. In the end, many flight-test data validate the scheme, and the result show it can make pure inertial system reach further high accuracy.
机译:为了提高INS / GPS组合导航系统的精度,特别是在从组合导航到纯惯性导航的情况下,提出了卡尔曼滤波校正周期的方案。基于对惯导误差规则的详细分析和来自多个飞行测试数据的GPS输出信号的误差特征,选择了合理的校正周期。最后,许多飞行试验数据验证了该方案,结果表明该方案可使纯惯性系统达到更高的精度。

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