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首页> 外文期刊>IEEE Transactions on Aerospace and Electronic Systems >Fast Protection Levels for Fault Detection With an Application to Advanced RAIM
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Fast Protection Levels for Fault Detection With an Application to Advanced RAIM

机译：用于先进的Raim应用程序的故障检测快速保护水平

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摘要

Fault detection algorithms (such as advanced RAIM) developed for aviation can be applied in situations where the probabilities of fault are arbitrarily high. However, with large probabilities, the user receiver needs to protect against a large number of fault modes (which results from the combination of simultaneous independent faults). In baseline ARAIM algorithms, the user receiver must compute a fault-tolerant position solution for each fault mode (computed using the subset of the available measurements that would not be affected by the fault mode), or at least its error covariance. After showing how to use a solution separation algorithm without computing the fault-tolerant position solutions, we present a technique to obtain upper bounds on the subset error covariance for a given subset size. This upper bound does not require the computation of every subset error covariance and can be computed without additional matrix inversions. We evaluate the potential of this technique by applying it to ARAIM scenarios.
机译：用于航空开发的故障检测算法（例如高级Raim）可以在故障概率任意高的情况下应用。然而，具有很大的概率，用户接收器需要防止大量的故障模式（这是由同时独立故障的组合而导致的）。在基线ARAIM算法中，用户接收器必须为每个故障模式计算容错位置解决方案（使用不会受到故障模式影响的可用测量的子集计算），或者至少其错误协方差。在展示如何使用解决方案分离算法而不计算容错位置解决方案之后，我们介绍了一种在给定子集大小的子集误差协方差上获取上限的技术。该上限不需要计算每个子集错误协方差，并且可以在没有额外的矩阵逆转的情况下计算。我们通过将其应用于araim方案来评估该技术的潜力。

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