Abstract

This paper presents an extended BLUE filter with Pitot tube and windspeed measurements. Though widely used in aviation, Pitot tube is ignored by scholars because it only measures the speed of an aircraft relative to the air. Investigation shows the linear combination of Pitot tube and windspeed measurements can yield aircraft velocity estimation to improve performance. After a thorough analysis of the relationship between measurements and target state, an extended BLUE filter model is built, filter parameters are derived. Extensive simulation comparisons with other state-of-the-art methods verify the proposed method is accurate and computationally efficient.

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