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Synthetic data for validation of navigation systems

机译:用于导航系统验证的综合数据

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Pre-flight design assessment and validation of navigation systems require emulating data acquired by a range of different hypothetical configurations of onboard sensors with different quality standards and/or sampling time specifications. A proper validation procedure requires the emulated data to be available at arbitrarily specified sampling times and for different hypothetical test-trajectories. The problem thus formulated entails obtaining, for the different case studies, closed solutions of the nonlinear kinematics equations as explicit functions of time. The method proposed is based on constructing a subset of the solutions of the kinematics equations contained in a vector spline functional space whose order may be arbitrarily specified. Particular consideration is devoted to the solutions of the attitude quaternion. The method is illustrated with experimental data obtained during a sub-orbital flight of the VS30 vehicle of the Brazilian Space Agency.
机译:导航系统的飞行前设计评估和验证要求模拟由具有不同质量标准和/或采样时间规格的机载传感器的一系列不同假设配置所获取的数据。正确的验证程序需要在任意指定的采样时间以及针对不同的假设测试轨迹提供仿真数据。这样提出的问题需要针对不同的案例研究,获得非线性运动学方程的封闭解作为时间的显式函数。提出的方法是基于构造矢量样条函数空间中包含的运动学方程解的子集,该向量样条函数空间可以任意指定顺序。特别考虑了姿态四元数的解。巴西航天局VS30运载工具在亚轨道飞行期间获得的实验数据说明了该方法。

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