Inertia and ADS height fusion method based on air pressure reference adaptive correction
A technology of barometric altitude and fusion method, which is applied in altitude/horizontal measurement, character and pattern recognition, and navigation through speed/acceleration measurement, etc. It can solve the problems of inconsistency of altitude measurement information reference, difficulty in ensuring flight safety, and barometric reference switching Jump and other problems, to improve navigation accuracy, ensure safe interval and stable flight, and enhance robustness
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[0227] In this simulated track use case, the results of the vertical altitude error before and after correction when the barometric reference is switched during the whole flight segment are shown in Table 1.
[0228] Table 1 Altitude error results in the vertical direction before and after correction when the barometric reference is switched for the whole flight segment
[0229]
[0230] It can be seen that the inertial and ADS height fusion method based on the self-adaptive correction of the air pressure reference in the present invention keeps the vertical height error of the aircraft in the entire voyage at the meter level, improves the navigation accuracy in the vertical direction of the entire voyage of the aircraft, and solves the problem of air pressure at the same time. The jump problem of height error at the reference switching point ensures the stability of the navigation system.
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